Question

v)The valency of Allwith atomic number 13 is
a)2. b)3 c)4 d)1​

Answer 1

Answer:

b) 3.............

Explanation:

hope it help ☺☺

Answer 2

Answer:

b. +3

Explanation:

+3

Atomic number of aluminium is 13 so its electronic configuration is 2, 8, 3. Since it has 3 electrons in its valence shell, it will lose 3 electrons to complete its octet hence its valency is +3.