Evaluating Scientific Explanations

Question 1

Question 1

Revolt · Accepted Answer

one type of atom

Question 2

Question 2

Revolt · Accepted Answer

compound

Question 3

Which statement accurately describes the chemical symbol of an element?

Revolt · Accepted Answer

The chemical symbol always begins with a capital letter.

Question 4

Use the drop-down menus to complete the statement. An isotope has the same number of but a different number of than other atoms of the same element.

Revolt · Accepted Answer

protons; Selection 1: protons; Selection 2: neutrons

Question 5

Question 7

Revolt · Accepted Answer

neutrons

Question 6

Question 12

Revolt · Accepted Answer

19

Question 7

Use the drop-down menus to complete the statements. When electrons are lost, a ion is formed. When electrons are gained, a ion is formed.

Revolt · Accepted Answer

positive; Selection 1: positive; Selection 2: negative

Question 8

Question 14

Revolt · Accepted Answer

negative

Question 9

The aluminum atom electrons to form an ion. The ion that is formed is .

Revolt · Accepted Answer

loses; Selection 1: loses; Selection 2: positive

Question 10

Question 20

Revolt · Accepted Answer

positive

Evaluating Scientific Explanations Answers