AP BIOLOGY

BIOCHEMISTRY

ATOMIC STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many valence electrons does Barium have?
A
1
B
2
C
3
D
4
Explanation: 

Detailed explanation-1: -Barium is an alkaline earth metal; i.e. Group II of the Periodic table. Therefore, it has 2 valence electrons.

Detailed explanation-2: -The Ba belongs to group 2 elements i.e. the alkaline earth metals, since the Ba is a group 2 element, the number of valence electrons will be 2.

Detailed explanation-3: -From the above method, valency of barium is two and that of chlorine is one.

Detailed explanation-4: -*Note that helium (He) only has two valence electrons.

Detailed explanation-5: -The number of valence electrons in boron (B) will therefore be 3.

There is 1 question to complete.