Chapter 17 Test

Question 1

What is an atom?

Answer 1

basic unit of matter

Question 2

How many subatomic particles does an atom have?

Answer 2

3

Question 3

What are the subatomic particles and describe them

Answer 3

Protons- + charge and in the nucleus
Neutrons- neutral charge an in the nucleus
Electrons- - charge and outside of the nucleus

Question 4

What is the nucleus

Answer 4

the center of an atom with a + charge

Question 5

What are quarks?

Answer 5

smaller particles that make up protons and neutrons

Question 6

What contains most mass of an atom?

Answer 6

the nucleus

Question 7

How do you find the mass number or atomic mass?

Answer 7

protons + neutrons

Question 8

What is atomic number?

Answer 8

number of protons

Question 9

What are isotopes?

Answer 9

same number of protons but different number of neutrons

Question 10

What is average atomic mass (weight)

Answer 10

weighted average of the mixture of isotopes in an element

Question 11

How is the periodic table arranged?

Answer 11

increasing atomic number

Question 12

What is included in the box of an element?

Answer 12

name, symbol, atomic number, and atomic weight

Question 13

What are some symbols based on?

Answer 13

Their Latin names

Question 14

What are the vertical columns called?

Answer 14

Groups/families

Question 15

What are groups numbered through

Answer 15

1-18

Question 16

What are groups based on?

Answer 16

They have similar properties, same number of valence electrons, and they have electrons in the same electron cloud

Question 17

What are the horizontal rows called?

Answer 17

Periods

Question 18

What are periods numbered through?

Answer 18

1-17

Question 19

What are periods based on?

Answer 19

Energy levels

Question 20

What does the electrons dot diagram do?

Answer 20

it helps show what will bond together