Question

in the following table are given 8 elements A, B, C, D, E, F, G, H of the modern periodic table with the atomic number of the elements in parentheisis

Period group1 group2
2 A(3) E(4)
3 B(11) F(12)
4 C(19) G(20)
5 D(37) H(38)

Q)
1)WRITE THE size of atoms of E, F, G, H in decreasing order
2)state whether f is a metal or a non-metal
3)out of the 3 elements B, E, F which one has the biggest atomic size

Answer 1

The elements r

A-Li, B-Be, C-Na, D-Mg, E-K, F-Ca, G-Rb, H-Sr. Now,

1)G,H,E,F

2)Metal

3)E

Answer 2

1 E F G H IN D.O

2 F IS A METAL

3 B HAS THE BIGGEST ATOMIC RADIUS