Atomic Models
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CHXI02:STRUCTURE OF ATOM

307123 Assertion :
Hydrogen nuclei combine to form helium nuclei and energy is released.
Reason :
Binding energy / nucleon of He is greater than hydrogen.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307124 Which of the following pairs is isoelectronic?

1 \(\mathrm{Ne}, \mathrm{Cl}\)
2 \(\mathrm{Ca}^{2+}, \mathrm{F}^{-}\)
3 \(\mathrm{Mg}^{2+}, \mathrm{K}^{+}\)
4 \(\mathrm{N}^{3-}, \mathrm{Na}^{+}\)
CHXI02:STRUCTURE OF ATOM

307125 Two atoms are said to be isobars if

1 They have same atomic numbers but different mass numbers.
2 They have same number of electrons but different number of neutrons.
3 They have same number of neutrons but different number of electrons.
4 Sum of the number of protons and neutrons is same but the number of protons is different.
NCERT Exemplar
CHXI02:STRUCTURE OF ATOM

307126 Assertion :
The position of an element in periodic table after emission of one \(\alpha\) - and two \(\beta\)-particles remains unchanged.
Reason :
Emission of one \(\alpha\) - and two \(\beta\) particles gives isotope of the element which acquires same position in the periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307127 Assertion :
The chemical properties of different isotopes are same.
Reason :
Isotopes have same number of neutrons.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2019
NEET DIGITAL LIBRARY
CHXI02:STRUCTURE OF ATOM

307123 Assertion :
Hydrogen nuclei combine to form helium nuclei and energy is released.
Reason :
Binding energy / nucleon of He is greater than hydrogen.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307124 Which of the following pairs is isoelectronic?

1 \(\mathrm{Ne}, \mathrm{Cl}\)
2 \(\mathrm{Ca}^{2+}, \mathrm{F}^{-}\)
3 \(\mathrm{Mg}^{2+}, \mathrm{K}^{+}\)
4 \(\mathrm{N}^{3-}, \mathrm{Na}^{+}\)
CHXI02:STRUCTURE OF ATOM

307125 Two atoms are said to be isobars if

1 They have same atomic numbers but different mass numbers.
2 They have same number of electrons but different number of neutrons.
3 They have same number of neutrons but different number of electrons.
4 Sum of the number of protons and neutrons is same but the number of protons is different.
NCERT Exemplar
CHXI02:STRUCTURE OF ATOM

307126 Assertion :
The position of an element in periodic table after emission of one \(\alpha\) - and two \(\beta\)-particles remains unchanged.
Reason :
Emission of one \(\alpha\) - and two \(\beta\) particles gives isotope of the element which acquires same position in the periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307127 Assertion :
The chemical properties of different isotopes are same.
Reason :
Isotopes have same number of neutrons.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2019
Join With Us for More Updates
CHXI02:STRUCTURE OF ATOM

307123 Assertion :
Hydrogen nuclei combine to form helium nuclei and energy is released.
Reason :
Binding energy / nucleon of He is greater than hydrogen.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307124 Which of the following pairs is isoelectronic?

1 \(\mathrm{Ne}, \mathrm{Cl}\)
2 \(\mathrm{Ca}^{2+}, \mathrm{F}^{-}\)
3 \(\mathrm{Mg}^{2+}, \mathrm{K}^{+}\)
4 \(\mathrm{N}^{3-}, \mathrm{Na}^{+}\)
CHXI02:STRUCTURE OF ATOM

307125 Two atoms are said to be isobars if

1 They have same atomic numbers but different mass numbers.
2 They have same number of electrons but different number of neutrons.
3 They have same number of neutrons but different number of electrons.
4 Sum of the number of protons and neutrons is same but the number of protons is different.
NCERT Exemplar
CHXI02:STRUCTURE OF ATOM

307126 Assertion :
The position of an element in periodic table after emission of one \(\alpha\) - and two \(\beta\)-particles remains unchanged.
Reason :
Emission of one \(\alpha\) - and two \(\beta\) particles gives isotope of the element which acquires same position in the periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307127 Assertion :
The chemical properties of different isotopes are same.
Reason :
Isotopes have same number of neutrons.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2019
For More Updates join with Us
CHXI02:STRUCTURE OF ATOM

307123 Assertion :
Hydrogen nuclei combine to form helium nuclei and energy is released.
Reason :
Binding energy / nucleon of He is greater than hydrogen.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307124 Which of the following pairs is isoelectronic?

1 \(\mathrm{Ne}, \mathrm{Cl}\)
2 \(\mathrm{Ca}^{2+}, \mathrm{F}^{-}\)
3 \(\mathrm{Mg}^{2+}, \mathrm{K}^{+}\)
4 \(\mathrm{N}^{3-}, \mathrm{Na}^{+}\)
CHXI02:STRUCTURE OF ATOM

307125 Two atoms are said to be isobars if

1 They have same atomic numbers but different mass numbers.
2 They have same number of electrons but different number of neutrons.
3 They have same number of neutrons but different number of electrons.
4 Sum of the number of protons and neutrons is same but the number of protons is different.
NCERT Exemplar
CHXI02:STRUCTURE OF ATOM

307126 Assertion :
The position of an element in periodic table after emission of one \(\alpha\) - and two \(\beta\)-particles remains unchanged.
Reason :
Emission of one \(\alpha\) - and two \(\beta\) particles gives isotope of the element which acquires same position in the periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307127 Assertion :
The chemical properties of different isotopes are same.
Reason :
Isotopes have same number of neutrons.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2019
NEET DIGITAL LIBRARY
CHXI02:STRUCTURE OF ATOM

307123 Assertion :
Hydrogen nuclei combine to form helium nuclei and energy is released.
Reason :
Binding energy / nucleon of He is greater than hydrogen.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307124 Which of the following pairs is isoelectronic?

1 \(\mathrm{Ne}, \mathrm{Cl}\)
2 \(\mathrm{Ca}^{2+}, \mathrm{F}^{-}\)
3 \(\mathrm{Mg}^{2+}, \mathrm{K}^{+}\)
4 \(\mathrm{N}^{3-}, \mathrm{Na}^{+}\)
CHXI02:STRUCTURE OF ATOM

307125 Two atoms are said to be isobars if

1 They have same atomic numbers but different mass numbers.
2 They have same number of electrons but different number of neutrons.
3 They have same number of neutrons but different number of electrons.
4 Sum of the number of protons and neutrons is same but the number of protons is different.
NCERT Exemplar
CHXI02:STRUCTURE OF ATOM

307126 Assertion :
The position of an element in periodic table after emission of one \(\alpha\) - and two \(\beta\)-particles remains unchanged.
Reason :
Emission of one \(\alpha\) - and two \(\beta\) particles gives isotope of the element which acquires same position in the periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307127 Assertion :
The chemical properties of different isotopes are same.
Reason :
Isotopes have same number of neutrons.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2019