238655
According to Aufbau principle, the sub-shell which is occupied by the electron first has :
1 higher energy
2 lower stability
3 lower energy
4 can't b predicted
Explanation:
The Aufbau Principle states that in the ground state of atom or ion, electron fill atomic orbital of the lowest available energy level's before occupying higher levels (e.g. is before $2 \mathrm{~s}$ ). In this way, the electron of an atom or ion from the most stable electron configuration possible.
AP-EAMCET-1993
Structure of Atom
238656
The constancy of $\frac{e}{\mathrm{~m}}$ ratio for electrons inspite of variations of gas present in the discharge tube or of the material of the cathode shows that :
1 electrons are negatively charged
2 electrons are universal constituents of matter
3 electrons are the lightest of all particles
4 mass of the electron is $\frac{1}{1838}$ of the mass of H-atom
Explanation:
The constancy of $\mathrm{e} / \mathrm{m}$ ratio for electrons inspite of variation of gas present in the discharge tube or the material of the cathode shows that electrons are universal constituents of matters.
AP-EAMCET-1994
Structure of Atom
238660
The nucleus of an atom contains
1 Proton and electron
2 Neutron and electron
3 Proton and neutron
4 Proton, neutron and electron
Explanation:
The nucleus of an atom contain of proton and neutron.
MPPET-2008
Structure of Atom
238661
"The properties of elements are periodic functions of their atomic weights." This periodic law was given by
1 Dobereiner
2 Lother Meyer
3 Mendeleev
4 Alexander
Explanation:
"The properties of elements are periodic functions of their atomic weights." It is Mendeleev's periodic ion.
238655
According to Aufbau principle, the sub-shell which is occupied by the electron first has :
1 higher energy
2 lower stability
3 lower energy
4 can't b predicted
Explanation:
The Aufbau Principle states that in the ground state of atom or ion, electron fill atomic orbital of the lowest available energy level's before occupying higher levels (e.g. is before $2 \mathrm{~s}$ ). In this way, the electron of an atom or ion from the most stable electron configuration possible.
AP-EAMCET-1993
Structure of Atom
238656
The constancy of $\frac{e}{\mathrm{~m}}$ ratio for electrons inspite of variations of gas present in the discharge tube or of the material of the cathode shows that :
1 electrons are negatively charged
2 electrons are universal constituents of matter
3 electrons are the lightest of all particles
4 mass of the electron is $\frac{1}{1838}$ of the mass of H-atom
Explanation:
The constancy of $\mathrm{e} / \mathrm{m}$ ratio for electrons inspite of variation of gas present in the discharge tube or the material of the cathode shows that electrons are universal constituents of matters.
AP-EAMCET-1994
Structure of Atom
238660
The nucleus of an atom contains
1 Proton and electron
2 Neutron and electron
3 Proton and neutron
4 Proton, neutron and electron
Explanation:
The nucleus of an atom contain of proton and neutron.
MPPET-2008
Structure of Atom
238661
"The properties of elements are periodic functions of their atomic weights." This periodic law was given by
1 Dobereiner
2 Lother Meyer
3 Mendeleev
4 Alexander
Explanation:
"The properties of elements are periodic functions of their atomic weights." It is Mendeleev's periodic ion.
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Structure of Atom
238655
According to Aufbau principle, the sub-shell which is occupied by the electron first has :
1 higher energy
2 lower stability
3 lower energy
4 can't b predicted
Explanation:
The Aufbau Principle states that in the ground state of atom or ion, electron fill atomic orbital of the lowest available energy level's before occupying higher levels (e.g. is before $2 \mathrm{~s}$ ). In this way, the electron of an atom or ion from the most stable electron configuration possible.
AP-EAMCET-1993
Structure of Atom
238656
The constancy of $\frac{e}{\mathrm{~m}}$ ratio for electrons inspite of variations of gas present in the discharge tube or of the material of the cathode shows that :
1 electrons are negatively charged
2 electrons are universal constituents of matter
3 electrons are the lightest of all particles
4 mass of the electron is $\frac{1}{1838}$ of the mass of H-atom
Explanation:
The constancy of $\mathrm{e} / \mathrm{m}$ ratio for electrons inspite of variation of gas present in the discharge tube or the material of the cathode shows that electrons are universal constituents of matters.
AP-EAMCET-1994
Structure of Atom
238660
The nucleus of an atom contains
1 Proton and electron
2 Neutron and electron
3 Proton and neutron
4 Proton, neutron and electron
Explanation:
The nucleus of an atom contain of proton and neutron.
MPPET-2008
Structure of Atom
238661
"The properties of elements are periodic functions of their atomic weights." This periodic law was given by
1 Dobereiner
2 Lother Meyer
3 Mendeleev
4 Alexander
Explanation:
"The properties of elements are periodic functions of their atomic weights." It is Mendeleev's periodic ion.
238655
According to Aufbau principle, the sub-shell which is occupied by the electron first has :
1 higher energy
2 lower stability
3 lower energy
4 can't b predicted
Explanation:
The Aufbau Principle states that in the ground state of atom or ion, electron fill atomic orbital of the lowest available energy level's before occupying higher levels (e.g. is before $2 \mathrm{~s}$ ). In this way, the electron of an atom or ion from the most stable electron configuration possible.
AP-EAMCET-1993
Structure of Atom
238656
The constancy of $\frac{e}{\mathrm{~m}}$ ratio for electrons inspite of variations of gas present in the discharge tube or of the material of the cathode shows that :
1 electrons are negatively charged
2 electrons are universal constituents of matter
3 electrons are the lightest of all particles
4 mass of the electron is $\frac{1}{1838}$ of the mass of H-atom
Explanation:
The constancy of $\mathrm{e} / \mathrm{m}$ ratio for electrons inspite of variation of gas present in the discharge tube or the material of the cathode shows that electrons are universal constituents of matters.
AP-EAMCET-1994
Structure of Atom
238660
The nucleus of an atom contains
1 Proton and electron
2 Neutron and electron
3 Proton and neutron
4 Proton, neutron and electron
Explanation:
The nucleus of an atom contain of proton and neutron.
MPPET-2008
Structure of Atom
238661
"The properties of elements are periodic functions of their atomic weights." This periodic law was given by
1 Dobereiner
2 Lother Meyer
3 Mendeleev
4 Alexander
Explanation:
"The properties of elements are periodic functions of their atomic weights." It is Mendeleev's periodic ion.