Consider the following elements and their electronic configurations W: 1s² 2s² X: 1s² 2s² 2p6 Y: 1s² 2s² 2p6 3s²…
A. they exist in different physical states B. they exist as diatomic molecules C. their ionic radii decrease down the…
A. 9 B. 10 C. 11 D. 12 Correct Answer: Option C C. 11
A. 2p electrons only B. 3s and 3p electrons only C. 3p and 3d electrons only D. 3p electrons only…
A. an atom B. an electron C. a proton D. a neutron Correct Answer: Option A A. an atom
A. atomic number 17 B. atomic number 18 C. mass number 35 D. mass number 52 Correct Answer: Option A…
A. 2He B. 10Ne C. 18Ar D. 36Kr Correct Answer: Option B B. 10Ne
A. ethanal B. ethane C. ethanoic acid D. ethylethanoate Correct Answer: Option C C. ethanoic acid
A. activation analysis B. carbon dating C. radiotherapy D. tissue regeneration Correct Answer: Option C C. radiotherapy
A. CH3CHICH3 B. CH3CH2CHI2 C. CH3CH2CI3 D. CH3CHICH2I Correct Answer: Option A A. CH3CHICH3