choose all of the elements found in a family (group) with \ns²np³\ electron configuration.\nc\nn\nsi\np
choose all of the elements found in a family (group) with \ns²np³\ electron configuration.\nc\nn\nsi\np
Answer
Explanation:
Step1: Analyze the valence - electron configuration
Elements with the general electron configuration (ns^{2}np^{3}) have 5 valence electrons. They belong to Group 15 (or Group VA) of the periodic table.
Step2: Check each element
- Carbon (C) has an electron configuration of (1s^{2}2s^{2}2p^{2}), so it does not have (ns^{2}np^{3}) configuration.
- Nitrogen (N) has an electron configuration of (1s^{2}2s^{2}2p^{3}), which is of the form (ns^{2}np^{3}) ((n = 2) here).
- Silicon (Si) has an electron configuration of (1s^{2}2s^{2}2p^{6}3s^{2}3p^{2}), so it does not have (ns^{2}np^{3}) configuration.
- Phosphorus (P) has an electron configuration of (1s^{2}2s^{2}2p^{6}3s^{2}3p^{3}), which is of the form (ns^{2}np^{3}) ((n = 3) here).
Answer:
B. N, D. P