Unit 1: Atomic Structure and the Periodic Table

Which subatomic particle has a negative charge?

• proton

• electron

• neutron

• nucleus

Most of the mass in an atom is made up of _____________________?

• protons and electrons
• protons and neutrons
• neutrons and electrons
• electrons and quarks

Tags

NGSS.MS-PS1-1

What is the electrical charge of a proton?

• 1+
• 1-
• neutral
• 2-

Tags

NGSS.HS-PS2-4

Which atom would be classified as a halogen?

• Neon
• Sodium
• Chlorine
• Magnesum

Which atom represents an alkali metal?

• Neon
• Sodium
• Chlorine
• Magnesium 

Atomic Radius increases as you move_____ and ______ on the periodic table

• up and left
• up and right
• down and right
• down and left

Ionization energy and electronegativity  increases as you move_____ and ______ on the periodic table

• up and left
• up and right
• down and right
• down and left

The atomic number always indicates...

• the number of protons and neutrons an element has

• the number of protons an element has

• the average mass of all the isotopes of an element

• the number of electrons on the outer shell

The atomic mass on the periodic table indicates...

• the number of protons and neutrons an element has

• the number of protons an element has

• the average mass of all the isotopes of an element

• the number of electrons on the outer shell

Isotopes of the same element...

• have different number of neutrons AND mass numbers

• have different number of protons

• have the same mass number

• none of these are true