Chapter 17- Atoms and the Periodic Table

Question 1

Atomic Number

Answer 1

number of protons in an element

Question 2

Mass Number

Answer 2

total number of protons and neutrons

Question 3

What is the charge of an atom?

Answer 3

The charge of an atom is neutral

Question 4

What is the charge of the nucleus in the atom?

Answer 4

The charge of the nucleus is positive

Question 5

What is the difference between the Electron Cloud Model and the Bohr Model?

Answer 5

The electron cloud atom gives the electrons somewhere to go

Question 6

Vertical Columns

Answer 6

Groups/Famililes

Question 7

Horizontal Rows

Answer 7

Periods

Question 8

Who developed the periodic table?

Answer 8

Mendeleev

Question 9

Isotope

Answer 9

an element with a different number of neutrons

Question 10

What is Chlorine- 37?

Answer 10

an element with a mass of 37

Question 11

Dot Diagram

Answer 11

how many electrons are in outer energy levels

Question 12

metal

Answer 12

good conductor, hard

Question 13

nonmetal

Answer 13

not a good conductor, soft

Question 14

halogens

Answer 14

group 17 , 7 electrons in outer level, reactive

Question 15

Noble Gases

Answer 15

group 18, unreactive, complete outer energy level