Chapter 2

Question 1

Three particles of an atom

Answer 1

1. Protons
2. Neutrons
3. Electrons

Question 2

Location of electron

Answer 2

Outside the nucleus or orbitals

Question 3

4 elements in the human body

Answer 3

Hydrogen, Oxygen, Carbon, Nitrogen

Question 4

Three types of chemical bonds

Answer 4

1. Covalent
2. Ionic
3. Hydrogen

Question 5

What is an isotope?

Answer 5

Atoms of the same element that differ in the number of Neutrons.

Question 6

How much covalent Carbon has?

Answer 6

4

Question 7

All Hydrogen has how many protons?

Answer 7

1

Question 8

How many neutrons does Carbon have?

Answer 8

6

Question 9

(Be) has 4 atomic numbers and 9 atomic mass, find how many neutrons.

Answer 9

5 neutrons

Question 10

Covalent of Sulfur (16 atomic number)

Answer 10

2 covalent

Question 11

Define Radiostopes

Answer 11

Unstable isotopes by emitting energy

Question 12

Define matter

Answer 12

Anything that takes up space

Question 13

Define atom

Answer 13

Units of matter, that cannot be broken down

Question 14

How much atomic mass unit Protons and Neutrons have

Answer 14

1 atomic mass unit

Question 15

Shell model of electron
How many are in the first shell

Answer 15

2

Question 16

Shell model of electron
How many are in the second
shell

Answer 16

8

Question 17

4 element that make up the body

Answer 17

1.) Carbon
2.) Oxygen
3.) Hydrogen
4.) Nitrogen

Question 18

Atomic mass (weight) is made up by

Answer 18

Protons and Neutrons

Question 19

Isotopes of Hydrogen will have 1 Proton but …

Answer 19

Different Neutron

Question 20

Define Isotopes

Answer 20

The same element that differs in the number of Neutrons

Question 21

Define Covalent bonds

Answer 21

Two atoms come together and share electrons

Question 22

What are three electronegative elements found in biological organisms?

Answer 22

1.) Oxygen
2.) Nitrogen
3.) Sulfur

Question 23

Nitrogen has how many covalent bonds?

Answer 23

3

Question 24

Hydrogen has how many covalent bonds

Answer 24

1

Question 25

Oxygen has how many covalent bonds?

Answer 25

2

Question 26

Covalent bonds of these elements

C =
N =
O =
S =
H =

Answer 26

C = 4
N = 3
O = 2
S = 2
H = 1

Question 27

Draw Carbon (biological element), with the correct number of protons, neutrons, and electrons.

Question 28

Draw hydrogen bonding

Answer 28