Covalent Bonds — Unit test

Question 1

The electron dot diagram shows the arrangement of dots without identifying the element.

Revolt · Accepted Answer

arsenic (As)

Question 2

Helium (He) and neon (Ne) are elements in Group 8A of the periodic table. How do the electron dot diagrams of these elements compare?

Revolt · Accepted Answer

The electron dot diagram of helium has six fewer dots than the electron dot diagram of neon.

Question 3

Which is an example of a polyatomic ion?

Revolt · Accepted Answer

CO3-

Question 4

How many dots belong in the electron dot diagram of a boron (B) atom?

Revolt · Accepted Answer

three

Covalent Bonds — Unit test Answers