how many valence electrons are in the molecule, c₂h₇n. a) 20 b) 30 c) 24 d) 27 e) 15
how many valence electrons are in the molecule, c₂h₇n. a) 20 b) 30 c) 24 d) 27 e) 15
Answer
Explanation:
Step1: Determine valence - electrons of each atom
Carbon (C) has 4 valence electrons, hydrogen (H) has 1 valence electron, and nitrogen (N) has 5 valence electrons.
Step2: Calculate total valence - electrons
For (C_2H_7N), there are 2 C atoms, 7 H atoms, and 1 N atom. The total number of valence electrons is (2\times4 + 7\times1+1\times5). [2\times4 + 7\times1+1\times5=8 + 7+5=20]
Answer:
A. 20