43
Which of the following statements about dative bonding is not correct?
- A. there is sharing of electrons
- B. one atom must possess a lone pair electrons
- C. each participating atom contributes one electron
- D. it can be formed between molecules
44
An element X with electronic configuration \(1S^22S^22P^63S^2\) combines with another element Y with the configuration \(1S^2S^22P^23S^23P^5\). What is the formula of the compound formed?
- A. X2Y5
- B. X2Y3
- C. XY3
- D. XY2
45
Group O of elements are unreactive because
- A. their outmost shells contain equal number of electrons
- B. their highest occupied enegy level is full
- C. they are monatomic gases
- D. they are non-metals
46
The electronic configuration of an element is 1\(s^2\) 2\(s^2\) 2\(p^6\) 3\(s^2\) 3\(p^3\). Where is the element located in the periodic table?
- A. Group lll, period 3
- B. Group lll, period 5
- C. Group V, period 3
- D. Group V, period 5