A. are chemically active B. contain equal number of protons and neutrons C. contain more electrons than protons D. have…
A. lodine B. Chlorine C. Bromine D. Fluorine Correct Answer: Option C C. Bromine
A. number of neutrons B. number of valence electrons C. number of isotopes D. atomic number Correct Answer: Option B…
A. s-block period 3, group 1 B. p-block, period 3, group 2 C. s-block, period 3, group 3 D. p-block,…
A. 1s 2p 2s 3p 3s 3d 4s B. 1s 2s 2p 3s 3p 3d 4s C. 1s 2s 2p…
A. C4H10 B. C5H12 C. C7H14 D. C8H18 Correct Answer: Option C C. C7H14
A. 1.7 litres B. 0.420 litres C. 0.588 litres D. 2.35 litres Correct Answer: Option C A. 1.7 litres
A. atomic numbers B. metallic character C. mass number D. relative atomic mass Correct Answer: Option A A. atomic numbers
A. NH3 B. NO2 C. NO D. HNO3 Correct Answer: Option A A. NH3
A. 1.12g B. 4.48g C. 1.80g D. 2.00g Correct Answer: Option C C. 1.80g