Question

5 LED
Answer the following questions
Q1). What do the following symbols or formulae denote?
(a) C (b) 2C (c) C12 (d) 3C12
(e) NaOH
2
Tuli (4 psfor
SEL
ali
(2) Write the valency of:
(a) Fluorine in CaF2
(b) Sulphur in SF6
(c) Copper in Cu20
(d) Magnesium in Mg3N2
(e) Nitrogen in N2O5​

Answer 1

Answer:

fluoride in caf2 sulphur sf6 copper cu20