Elements

Question 1

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

An element is made up of only one type of atom.; An element cannot be broken down into a simpler form.

Question 2

The element aluminum has an atomic number of 13. | How many protons are in the nucleus of an aluminum atom? | How many electrons does an aluminum atom have?

Revolt · Accepted Answer

13

Question 3

The element aluminum has an atomic number of 13. | How many protons are in the nucleus of an aluminum atom? | How many electrons does an aluminum atom have?

Revolt · Accepted Answer

13

Question 4

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

A compound can be a pure substance.; A compound can be isolated.

Question 5

What is the mass number of the isotope lithium-7?

Revolt · Accepted Answer

7; 5

Question 6

Question 13

Revolt · Accepted Answer

5

Question 7

What ion is formed when an atom of mercury (Hg) loses two electrons?

Revolt · Accepted Answer

Hg+2

Elements Answers

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