Question

c. 4
F. In which group of elements of the modem
periodic table are halogen placed ?
a. 17
b. 6
d. 2
F Which of the atomic number represent
the s-block elements ?
a. 7, 15
b. 3,12
c. 6, 14
d. 9, 17
VI/hich of the following pairs is NOT​

Answer 1

a. 17

b. 6

d. 2

ans:-

a . chlorine.

b. carbon

c. helium.

a. 7, 15

b. 3,12

c. 6, 14

d. 9, 17

ans:-

element. atomic number

a. nitrogen. 14

b. lithium. 7

c.carbon. 12

d. fluorine. 18