by Sunday | May 7 | Chemistry WAEC
A. are chemically active B. contain equal number of protons and neutrons C. contain more electrons than protons D. have octet structures Correct Answer: Option D D. have octet structures
by Sunday | May 7 | Chemistry WAEC
A. lodine B. Chlorine C. Bromine D. Fluorine Correct Answer: Option C C. Bromine
by Sunday | May 7 | Chemistry WAEC
A. number of neutrons B. number of valence electrons C. number of isotopes D. atomic number Correct Answer: Option B B. number of valence electrons
by Sunday | May 7 | Chemistry WAEC
A. s-block period 3, group 1 B. p-block, period 3, group 2 C. s-block, period 3, group 3 D. p-block, period 3, group 3 Correct Answer: Option D D. p-block, period 3, group 3
by Sunday | May 7 | Chemistry WAEC
A. 1s 2p 2s 3p 3s 3d 4s B. 1s 2s 2p 3s 3p 3d 4s C. 1s 2s 2p 3s 3p 4s 3d D. 1s 2s 3s 2p 3p 4s 3d Correct Answer: Option C B. 1s 2s 2p 3s 3p 3d 4s