A. Carbon B. Copper C. Hydrogen D. Oxygen Correct Answer: Option C C. Hydrogen
A. are gaseous at room temperature. B. form white precipitate with AgNO3(aq) C. react violently with hydrogen without heating D.…
A. Li < Na< k B. Na < Li < K C. K D. K < Li < Na Correct…
A. bond energy B. electronegativity C. electron affinity D. ionization energy Correct Answer: Option C C. electron affinity
A. HBr B. HCI C. HF D. HI Correct Answer: Option D D. HI
A. contain equal number of protons and neutrons B. contain more electrons than protons C. are chemically active D. have…
A. Calcium B. lron C. Magnesium D. Sodium Correct Answer: Option B B. lron
A. o B. 2 C. 6 D. 8 Correct Answer: Option A A. o
A. 1s² 2s² 2p4 B. 1s² 2s² 2p6 3s² C. 1s2 2s² 2p6 3s² 3p4 D. 1s² 2s² 2p6 Correct…