Question

Q1) An element has 2 electrons in its N shell.
i) State its position in periodic table (with period and group)

Q2) An element has atomic number 16 and mass number 32 than give its formula with chlorine

Answer 1

1) It is Calcium which

belongs to Group 2nd

and period 4th.Atomic

number of Calcium is

20.

2) Sulfur is the element with atomic number 16 and mass number 32.It belongs to Oxygen family .Sulfur forms many compounds with chlorine like SCL6

Answer 2

1). The element is Calcium.

It's group is 2 and period is 4

2. It's formula is SCl2