Science

Question 1

Atom

Answer 1

Smallest functioning unit of existence, made up of only one type of element

Question 2

Element

Answer 2

An element can be an atom, or a molecule made from only one type of matter from the periodic table

Question 3

Molecule

Answer 3

Two or more non-metal atoms bonded together

Question 4

Compound

Answer 4

Two or more atoms of different elements chemically bonded together

Question 5

Mixture

Answer 5

Two or more substances not chemically bonded together

Question 6

Substance

Answer 6

Matter that has a specific formation and specific properties

Question 7

Matter

Answer 7

Any substance that has mass and takes up space by having volume

Question 8

Ion

Answer 8

An element that has gained or lost an electron

Question 9

isotope

Answer 9

Two atoms with the same number of protons and electrons but a different number of neutrons

Question 10

How many electrons can each shell fit?

1st shell:
2nd shell:
3rd shell:
4th shell:

Answer 10

1st shell: 2
2nd shell: 8
3rd shell: 8
4th shell: 2

Question 11

How do ions occur?

Answer 11

When an element gains or loses an electron from one of its valence electron shells

Question 12

How do positive ions occur and what are they called?

Answer 12

Positive ions, known as cations, will have lost an electron

Question 13

How do negative ions occur and what are they called?

Answer 13

Negative ions, known as anions, will have gained an electron