Unit 7 Atomic Structure Test

A model that is used to help organize elements and their characteristics with reference to the other elements?

• The Bohr Model

• The electron configuration

• The Periodic Table

• The playbook

Elements having the same number of valence electrons will be found in the same

• Group

• Family

• Period

• Both Group and Family are the same

• Both Group and Period are the same

The atomic number of Lithium is 3. Therefore its nucleus must contain

• 3 protons and 3 neutrons

• 3 protons and 3 electrons

• 3 protons and no electrons

• 3 protons, 3 neutrons and 3 electrons

Tags

NGSS.MS-PS1-1

A neutral atom may contain 10 protons,

• 10 neutrons and 10 electrons

• 10 neutrons and 9 electrons

• 9 neutrons and 9 electrons

• 10 neutrons and 8 electrons

Tags

NGSS.MS-PS1-1

If an element has 14 protons, 15 neutrons, and 14 electrons, what is that elements atomic mass

• 28
• 14
• 29

Tags

NGSS.MS-PS1-1

What is the mass number of this atom?

• 1

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

What is the mass number of an element that has 18 protons, 18 electrons, and 19 neutrons?

• 12.5

• 13

• 25

• 37

True or False: The majority of an atom is made up of empty space

• True
• False

How many valence electrons can fit in the second energy level?

• 2
• 1
• 4
• 8

Which energy level has the most energy

• I

• II

• III

• IV