Ch. 2

Question 1

What is matter?

Answer 1

Anything that has weights & takes up space

Question 2

Elements are?

Answer 2

Solids, liquids, gases

Question 3

Elements consist of ?

Answer 3

One type of atom

Question 4

Atom is?

Answer 4

The smallest unit of matter that can enter into a chemical reaction

Question 5

Protons have a what charge?

Answer 5

Positive

Question 6

Neutrons have a what charge?

Answer 6

Neutral

Question 7

Electrons have a what charge?

Answer 7

Negative

Question 8

How many natural occurring elements are there?

Answer 8

92

Question 9

List 6 elements that make up the body weight for 98% of organisms

Answer 9

Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur

Question 10

Outer shell of a atom has how many electrons?

Answer 10

8

Question 11

Inner shell of a atom has how many electrons?

Answer 11

2

Question 12

The # of Protons an element has is what?

Answer 12

Atomic number

Question 13

The # of Protons + The # of Neutrons is the what?

Answer 13

Atomic mass (weight)

Question 14

Isotopes are?

Answer 14

Atoms of the same element with a different # of neutrons.

Question 15

Molecules form when?

Answer 15

Atoms come together

Question 16

Compound Molecules form when?

Answer 16

Different kinds of atoms come together

Question 17

Ionic bonds happen when?

Answer 17

Atoms give up + or take in - electrons

Question 18

A ion is a?

Answer 18

Particle with a charge

Question 19

Covalent Bonds occur when?

Answer 19

Atoms share electrons

Question 20

what covalent bond share one pair of electrons?

Answer 20

Single Covalent bond

Question 21

what covalent bond share two pairs of electrons?

Answer 21

Double Covalent bond

Question 22

What covalent bond shares three pairs of electrons?

Answer 22

Triple Covalent bond