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Science Clinic => Chemistry => Topic started by: khang on Feb 15, 2020

Title: Among the main-group elements the number of semimetals is
Post by: khang on Feb 15, 2020

Question 1

Metallic character for the main group elements generally
◦ increases from left to right across a period and decreases down a group.
◦ decreases from left to right across a period and increases down a group.
◦ decreases from left to right across a period and decreases down a group.
◦ increases from left to right across a period and increases down a group.

Question 2

Among the main-group elements the number of semimetals is
◦ five.
◦ eight.
◦ seven.
◦ six.

Title: Among the main-group elements the number of semimetals is
Post by: covalentbond on Feb 15, 2020

Answer 1

decreases from left to right across a period and increases down a group.

Answer 2

seven.