43
Which of the following properties of atoms generally increases down a group in the periodic table?
- A. Electron affinity
- B. Electronegativity
- C. Ionic radius
- D. lonization energy
44
A transition metal would be expected to
- A. from oxides with different formulae
- B. have strong oxidizing ability
- C. have low density
- D. have an atomic structure with an incomplete outermost shell
45
In which of the following atoms is the ionic radius larger than the atomic radius? [11 Na, 12Mg,13AI,17CI]
- A. Aluminium
- B. Chlorine
- C. Magnesium
- D. Sodium
46
Which of the following properties is characteristic of the halogens?
- A. Ability to accept electrons readily
- B. Ability to donate electrons readily
- C. Ability to from basic oxides
- D. Formation of coloured compounds
47
Which of the following statements about rare gases are correct?
- A. Their outermost shells are fully filled
- B. They are generally unreactive
- C. Their outermost shells are partially filled
- D. They have lone pair of
48
When sodium atom form the ion Na+,
- A. it gains one proton
- B. it achieves a noble gas configuration
- C. its atomic number increases
- D. it gains one electron