The element 'M' has an atomic number 11.

(a) What is it's electronic configuration?
(b) Which group does 'M' belong to?
(c) Is 'M' a metal or a non-metal?
(d) Write the formula of its chloride.

An element 'M' has atomic number 12.

(a) Write its electronic configuration.

(b) State the group to which 'M' belongs.

(c) Is 'M' a metal or a non-metal.

(d) Write the formula of its chloride.

An element 'M' has atomic number 11. [5 MARKS]
1. Write its electronic configuration.
2. State the group to which 'M' belongs.
3. Is 'M' a metal or a non-metal?
4. Write the formula of its chloride.
5. Name at least four elements present in this group.

Element P has atomic number 19.To which group and period, does P belong ? Is it a metal or a non-metal ? Why ?

An element A has 2 electrons in its fourth shell.State:

(a) its atomic number

(b) its electronic configuration

(c) its valency

(d) position in the periodic table

(e) is it a metal or non-metal

(f) is it an oxidising or reducing agent.