10th-Chemistry-Periodic Properties and Variation of Properties

The electronegativity of elements ________ across the period and _____________ down the group.

• Increases, increases

• Decreases, increases

• Increases, decreases

• Decreases, decreases

In general, non-metals are _________ electronegative than metals.

• Less

• more

• none of the above

• Equal

Across a period, the ionization potential_________

• Increases

• Decreases

• none of the above

•  Remains the same   

Down the group, electron affinity __________

• increases

•  none of the above

• Remains the same

• Decreases

Moving across a __________ of the periodic table, the elements show increasing ____________

Character.

• Period, non-metallic

• Period, metallic

•  Group, metallic

• Group, non-metallic

The properties of elements are periodic function of their____________

• Atomic, mass

• Valency

•  Atomic number

• Both (b) and (c)

If an elements has a low ionization energy then it is likely to be ____________

• Non-metallic

• Electronegative

•  Both (a) and (b)

•  Metallic

If an element has seven electrons in its outermost shell then it is likely to have the _________ atomic Size among all the elements in the same period.

• Smallest

• Both (a) and (b)

• Same

• Largest

The most reactive non-metals comprise Group__________ of the Periodic Table.

• 15

• 17

• 16

• 14

The element with lowest ionization energy among the following is:

• N

• Rb

•  K

• Li