CBSE | NCERT X - Periodic Properties of the Elements check your understanding

Periodic Properties BOARD Questions

1) What is the atomic radius of an atom?

2) What is the trend in atomic radius across a period?

3) The trend in atomic radius across a period is caused by _____.

4) What generally happens to atomic radii as one goes down a group or a family?

5) Write the equation for the ionization of an atom.

6) What is an ion?

7) What is ionization energy?

8) Which group or family has the lowest ionization energy?

9) Group 18 or 8A, the noble gases, have the highest ionization energy (True or False).

10) Elements with a high ionization energy lose electrons easily (True or False).

11) The increase in ionization energy across a period is caused by _____.

12) Why does ionization energy generally decrease going down a group or family?

13) What is meant by electron shielding?

14) What is the second ionization energy of an atom?

15) What is electron affinity?

16) Write the equation for electron affinity for an exothermic process.

17) Write the equation for electron affinity for an endothermic process.

18) Which group or family gains electrons most easily?

19) What is a cat ion?

20) What is an anion?

Links For   CBSE Class X Science Term-II

Carbon and Its Compounds

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