An atom is neutral, its nucleus contains:

P — Negatively charged particles.

Q — Neutral particles.

R — Positively charged particles.

1. Only P
2. Only Q
3. Only R
4. Both Q and R

Postulates of modern atomic theory are:

P — Atoms of an elements may not be alike.

Q — Atoms of elements combine in small whole numbers to form molecules.

R — Atoms can neither be created nor destroyed.

1. Only P
2. Only Q
3. Only R
4. Both P and Q

Select the correct statement(s) for the diagram shown below.

P — Mg looses electrons and undergoes reduction.

Q — Cl gains electrons and undergoes reduction.

R — Mg looses electrons and undergoes oxidation.

1. Only P
2. Only Q
3. Only R
4. Both Q and R

Select the correct statement(s) for the diagram shown below.

P — One atom of carbon transfers one electron to each chlorine atom.

Q — One atom of carbon shares four electron pairs, one with each of the four atoms of chlorine.

R — Carbon atom attains neon configuration and chlorine attains argon configuration after the combination.

1. Only P
2. Only Q
3. Only R
4. Both Q and R