how many valence electrons are in the water molecule h₂o?
how many valence electrons are in the water molecule h₂o?
Answer
Explanation:
Step1: Determine valence electrons of H
Hydrogen (H) is in group 1, has 1 valence - electron. There are 2 H atoms in H₂O, so total from H is 2×1 = 2.
Step2: Determine valence electrons of O
Oxygen (O) is in group 16, has 6 valence - electrons. There is 1 O atom in H₂O, so total from O is 1×6 = 6.
Step3: Calculate total valence electrons
Add the valence electrons from H and O: 2 + 6=8.
Answer:
8