Multiple choice

Which of the following statements is/are true, regarding the trends in a periodic table? (a) Valency increases on moving from top to bottom in a group. (b) Metallic properties decreases on moving from left to right in a period. (c) Atomic mass increases on moving from top to bottom in a group. (d) Electronegativity increases on moving from left to right in a period.

  1. only a

  2. only b

  3. both a and b

  4. b, c and d

  5. both b and d
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yes, it is correct. All the three options are true. Atoms of metals tend to lose electrons, the strong attraction does not allow loss of electrons, causing metallic character to decrease from left to right in a period. Atomic mass increases from top to bottom and across a period the electronegativity increases.

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