Stability of Atoms

Q. Stability is achieved when there are electrons in the outermost shell.

1. 4
2. 6
3. 8
4. 1

Q. On combining with other elements chlorine acquires the electronic configuration of ___.

1. Neon
2. Argon
3. Krypton
4. Xenon

Q. Duplet and octet configuration differs in terms of:

1. Number of electrons in outermost shell
2. Number of electrons in innermost shell
3. Number of Shells
4. Both B and C

Q.

Which among the following elements has an octet electronic configuration?

1. Na

2. Ne

3. Ca

4. Mg

Q. In a stable molecule, the force that holds two or more atoms together is known as .

1. octet
2. valency
3. chemical bond

Q. Identify the gas that is chemically inert.

1. Helium
2. Hydrogen
3. Oxygen
4. Fluorine

Q. Atoms are found to be stable when they have eight electrons in their outermost shells.

1. True
2. False

Q. Chlorine requires ______ electron(s) to attain stable electronic configuration.

1. 0
2. 1
3. 2
4. 3

Q. On combining with other elements chlorine acquires the electronic configuration of ___.

1. Neon
2. Argon
3. Krypton
4. Xenon

Q. Choose the correct statements among the following.

1. Two atoms will form a covalent bond if both atoms do not give up electrons easily.
2. Two atoms will form an ionic bond if both atoms do not give up electrons easily.
3. Ionic compounds are good conductors of electricity in solid state.
4. Ionic compounds are good conductors of electricity in molten state.