What is the name of the subatomic particles that have a negative charge?

• Electrons

• Neutrons

• Protons

• Quarks

What is the Value that represents the number of protons in an element?

• Atomic Mass

• Mass Number

• Valence Electrons

• Atomic Number

Tags

NGSS.HS-PS1-8

Arrangement of elements organized by atomic number

• Electron Cloud 
• Periodic Table 
• Electron Configuration
• None of these

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Calculation used to find the number of neutrons in an atom

• Atomic Mass - Atomic Number
• Atomic Number - Atomic Mass
• Atomic Mass - Electrons
• none of these

The only element with no neutrons in its nucleus is...

• Oxygen

• Helium

• Hydrogen

• Lithium

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 protons

• 40 protons

• 22 protons

• 21.9 protons

Tags

NGSS.HS-PS1-1

Al⁺³

This is an...

• Neutral atom

• ion

• isotope

The atomic mass of an atom is equal to

• number of protons plus number of neutrons

• number of protons plus number of electrons

• number of electrons plus the number of neutrons

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Tags

NGSS.HS-PS1-8

What are the three types of radiations?

• Alpha, Beta and Gamma

• Electrons, Neutrons and Protons

• Alloy, Ion and Isotopes

Tags

NGSS.HS-PS1-8