9718
The atomic number of an element is \(35. \) What is the total number of electrons present in all the \( p-\) orbitals of the ground state atom of that element
1 \(6\)
2 \(11\)
3 \(17\)
4 \(23\)
Explanation:
(c) \({X_{35}} = 1{s^2}2{s^2}2{p^6}\,3{s^2}3{p^6}4{s^2}3{d^{10}}4{s^2}4{p^5}\) Total no. of \({e^ - }\) is all \(p-\) orbitals \( = 6 + 6 + 5 = 17\).
Structure of Atom
9719
The nucleus of an element contain \( 9 \) protons. Its valency would be
1 \(1\)
2 \(3\)
3 \(2\)
4 \(5\)
Explanation:
(a) Since its nucleus contain \(9\) proton so its. atomic number is \( 9\) and its electronic configuration is \( 2, 7. \) So it require one more electron to complete its octet. Hence its valency is \(1.\)
Structure of Atom
9720
The compound in which cation is isoelectronic with anion is
1 \(NaCl\)
2 \(CsF\)
3 \(NaI\)
4 \({K_2}S\)
Explanation:
(d) \({K_2}S\) formed by \({K^ + }\)and \({S^{2 - }}\) ion. We know that atomic number of K is \( 19 \) and in \({K^ + }\)ion its atomic number would be \(18 \) similarly atomic number of \(S \) is \(16\) and in form \({S^{2 - }}\) ion its atomic number would be \(18 \) so the \({K^ + }\)and \({S^{2 - }}\)are isoelectronic with each other in \({K_2}S\).
Structure of Atom
9721
Which among the following species have the same number of electrons in its outermost as well as penultimate shell
1 \(M{g^{2 + }}\)
2 \({O^{2 - }}\)
3 \({F^ - }\)
4 \(C{a^{2 + }}\)
Explanation:
(d) \(_{20}Ca = 2,\,\,8,\,\,8,\,\,2\) \(C{a^{2 + }} = 2,\,\,8,\,\,8\,\,\) Hence, \(C{a^{2 + }}\) has \(8\) electrons each in outermost and penultimate shell.
Structure of Atom
9722
Six protons are found in the nucleus of
1 Boron
2 Lithium
3 Carbon
4 Helium
Explanation:
(c) Atomic no. of \(C = 6 \) so the number of protons in the nucleus \( = 6\)
9718
The atomic number of an element is \(35. \) What is the total number of electrons present in all the \( p-\) orbitals of the ground state atom of that element
1 \(6\)
2 \(11\)
3 \(17\)
4 \(23\)
Explanation:
(c) \({X_{35}} = 1{s^2}2{s^2}2{p^6}\,3{s^2}3{p^6}4{s^2}3{d^{10}}4{s^2}4{p^5}\) Total no. of \({e^ - }\) is all \(p-\) orbitals \( = 6 + 6 + 5 = 17\).
Structure of Atom
9719
The nucleus of an element contain \( 9 \) protons. Its valency would be
1 \(1\)
2 \(3\)
3 \(2\)
4 \(5\)
Explanation:
(a) Since its nucleus contain \(9\) proton so its. atomic number is \( 9\) and its electronic configuration is \( 2, 7. \) So it require one more electron to complete its octet. Hence its valency is \(1.\)
Structure of Atom
9720
The compound in which cation is isoelectronic with anion is
1 \(NaCl\)
2 \(CsF\)
3 \(NaI\)
4 \({K_2}S\)
Explanation:
(d) \({K_2}S\) formed by \({K^ + }\)and \({S^{2 - }}\) ion. We know that atomic number of K is \( 19 \) and in \({K^ + }\)ion its atomic number would be \(18 \) similarly atomic number of \(S \) is \(16\) and in form \({S^{2 - }}\) ion its atomic number would be \(18 \) so the \({K^ + }\)and \({S^{2 - }}\)are isoelectronic with each other in \({K_2}S\).
Structure of Atom
9721
Which among the following species have the same number of electrons in its outermost as well as penultimate shell
1 \(M{g^{2 + }}\)
2 \({O^{2 - }}\)
3 \({F^ - }\)
4 \(C{a^{2 + }}\)
Explanation:
(d) \(_{20}Ca = 2,\,\,8,\,\,8,\,\,2\) \(C{a^{2 + }} = 2,\,\,8,\,\,8\,\,\) Hence, \(C{a^{2 + }}\) has \(8\) electrons each in outermost and penultimate shell.
Structure of Atom
9722
Six protons are found in the nucleus of
1 Boron
2 Lithium
3 Carbon
4 Helium
Explanation:
(c) Atomic no. of \(C = 6 \) so the number of protons in the nucleus \( = 6\)
9718
The atomic number of an element is \(35. \) What is the total number of electrons present in all the \( p-\) orbitals of the ground state atom of that element
1 \(6\)
2 \(11\)
3 \(17\)
4 \(23\)
Explanation:
(c) \({X_{35}} = 1{s^2}2{s^2}2{p^6}\,3{s^2}3{p^6}4{s^2}3{d^{10}}4{s^2}4{p^5}\) Total no. of \({e^ - }\) is all \(p-\) orbitals \( = 6 + 6 + 5 = 17\).
Structure of Atom
9719
The nucleus of an element contain \( 9 \) protons. Its valency would be
1 \(1\)
2 \(3\)
3 \(2\)
4 \(5\)
Explanation:
(a) Since its nucleus contain \(9\) proton so its. atomic number is \( 9\) and its electronic configuration is \( 2, 7. \) So it require one more electron to complete its octet. Hence its valency is \(1.\)
Structure of Atom
9720
The compound in which cation is isoelectronic with anion is
1 \(NaCl\)
2 \(CsF\)
3 \(NaI\)
4 \({K_2}S\)
Explanation:
(d) \({K_2}S\) formed by \({K^ + }\)and \({S^{2 - }}\) ion. We know that atomic number of K is \( 19 \) and in \({K^ + }\)ion its atomic number would be \(18 \) similarly atomic number of \(S \) is \(16\) and in form \({S^{2 - }}\) ion its atomic number would be \(18 \) so the \({K^ + }\)and \({S^{2 - }}\)are isoelectronic with each other in \({K_2}S\).
Structure of Atom
9721
Which among the following species have the same number of electrons in its outermost as well as penultimate shell
1 \(M{g^{2 + }}\)
2 \({O^{2 - }}\)
3 \({F^ - }\)
4 \(C{a^{2 + }}\)
Explanation:
(d) \(_{20}Ca = 2,\,\,8,\,\,8,\,\,2\) \(C{a^{2 + }} = 2,\,\,8,\,\,8\,\,\) Hence, \(C{a^{2 + }}\) has \(8\) electrons each in outermost and penultimate shell.
Structure of Atom
9722
Six protons are found in the nucleus of
1 Boron
2 Lithium
3 Carbon
4 Helium
Explanation:
(c) Atomic no. of \(C = 6 \) so the number of protons in the nucleus \( = 6\)
9718
The atomic number of an element is \(35. \) What is the total number of electrons present in all the \( p-\) orbitals of the ground state atom of that element
1 \(6\)
2 \(11\)
3 \(17\)
4 \(23\)
Explanation:
(c) \({X_{35}} = 1{s^2}2{s^2}2{p^6}\,3{s^2}3{p^6}4{s^2}3{d^{10}}4{s^2}4{p^5}\) Total no. of \({e^ - }\) is all \(p-\) orbitals \( = 6 + 6 + 5 = 17\).
Structure of Atom
9719
The nucleus of an element contain \( 9 \) protons. Its valency would be
1 \(1\)
2 \(3\)
3 \(2\)
4 \(5\)
Explanation:
(a) Since its nucleus contain \(9\) proton so its. atomic number is \( 9\) and its electronic configuration is \( 2, 7. \) So it require one more electron to complete its octet. Hence its valency is \(1.\)
Structure of Atom
9720
The compound in which cation is isoelectronic with anion is
1 \(NaCl\)
2 \(CsF\)
3 \(NaI\)
4 \({K_2}S\)
Explanation:
(d) \({K_2}S\) formed by \({K^ + }\)and \({S^{2 - }}\) ion. We know that atomic number of K is \( 19 \) and in \({K^ + }\)ion its atomic number would be \(18 \) similarly atomic number of \(S \) is \(16\) and in form \({S^{2 - }}\) ion its atomic number would be \(18 \) so the \({K^ + }\)and \({S^{2 - }}\)are isoelectronic with each other in \({K_2}S\).
Structure of Atom
9721
Which among the following species have the same number of electrons in its outermost as well as penultimate shell
1 \(M{g^{2 + }}\)
2 \({O^{2 - }}\)
3 \({F^ - }\)
4 \(C{a^{2 + }}\)
Explanation:
(d) \(_{20}Ca = 2,\,\,8,\,\,8,\,\,2\) \(C{a^{2 + }} = 2,\,\,8,\,\,8\,\,\) Hence, \(C{a^{2 + }}\) has \(8\) electrons each in outermost and penultimate shell.
Structure of Atom
9722
Six protons are found in the nucleus of
1 Boron
2 Lithium
3 Carbon
4 Helium
Explanation:
(c) Atomic no. of \(C = 6 \) so the number of protons in the nucleus \( = 6\)
9718
The atomic number of an element is \(35. \) What is the total number of electrons present in all the \( p-\) orbitals of the ground state atom of that element
1 \(6\)
2 \(11\)
3 \(17\)
4 \(23\)
Explanation:
(c) \({X_{35}} = 1{s^2}2{s^2}2{p^6}\,3{s^2}3{p^6}4{s^2}3{d^{10}}4{s^2}4{p^5}\) Total no. of \({e^ - }\) is all \(p-\) orbitals \( = 6 + 6 + 5 = 17\).
Structure of Atom
9719
The nucleus of an element contain \( 9 \) protons. Its valency would be
1 \(1\)
2 \(3\)
3 \(2\)
4 \(5\)
Explanation:
(a) Since its nucleus contain \(9\) proton so its. atomic number is \( 9\) and its electronic configuration is \( 2, 7. \) So it require one more electron to complete its octet. Hence its valency is \(1.\)
Structure of Atom
9720
The compound in which cation is isoelectronic with anion is
1 \(NaCl\)
2 \(CsF\)
3 \(NaI\)
4 \({K_2}S\)
Explanation:
(d) \({K_2}S\) formed by \({K^ + }\)and \({S^{2 - }}\) ion. We know that atomic number of K is \( 19 \) and in \({K^ + }\)ion its atomic number would be \(18 \) similarly atomic number of \(S \) is \(16\) and in form \({S^{2 - }}\) ion its atomic number would be \(18 \) so the \({K^ + }\)and \({S^{2 - }}\)are isoelectronic with each other in \({K_2}S\).
Structure of Atom
9721
Which among the following species have the same number of electrons in its outermost as well as penultimate shell
1 \(M{g^{2 + }}\)
2 \({O^{2 - }}\)
3 \({F^ - }\)
4 \(C{a^{2 + }}\)
Explanation:
(d) \(_{20}Ca = 2,\,\,8,\,\,8,\,\,2\) \(C{a^{2 + }} = 2,\,\,8,\,\,8\,\,\) Hence, \(C{a^{2 + }}\) has \(8\) electrons each in outermost and penultimate shell.
Structure of Atom
9722
Six protons are found in the nucleus of
1 Boron
2 Lithium
3 Carbon
4 Helium
Explanation:
(c) Atomic no. of \(C = 6 \) so the number of protons in the nucleus \( = 6\)
