PERIODIC TABLE PERIOD 3

Period 3 is the ___________________ row in the Periodic Table

• vertical

• horizontal

if the element at 7 valence electrons and 3 shells filled with electrons, What is the position of the element in the Periodic Table?

• Period 7 Group 3

• Period 7 Group 13

• Period 3 Group 7

• Period 3 Group 17

the following are elements in Period 3 except

• Al

• Si

• Mg

• Br

the following elements are non-metals in period 3 except

• Si

• Cl

• Ar

• P

Across the Period Atomic Size

• increase

• decrease

• same

Across the Period Electrnegativity

• increase

• decrease

• same

the following are solid at room temperature except

• Mg

• Al

• Cl

• Si

Silicon are widely used in _________________industry

• plastic

• microelectronic

• electrical

• microwave

Which of the following are good conductor of electric?

• Ar

• Mg

• P

• Si

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