Science Milestones Review

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

Electrons are

• negative and in the nucleus

• positive and at the edge of the atom

• not in an atom

• negative and outside of the nucleus

Tags

NGSS.MS-PS2-3

An element is a

• pure substance

• compound

• mixture

• molecule

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

An atom with atomic number 6 would have how many protons

• 6

• 12

• 3

• cannot be determined

The central region of an atom where its neutrons and protons are is its

• nucleus

• electron cloud

• core

• center

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

The atomic number of this pictured element is

• 28
• 58.6934
• Ni
• Nickel

Tags

NGSS.HS-PS1-1

What does the 6 represent?

• Atomic mass
• atomic number
• chemical symbol
• element name

Tags

NGSS.MS-PS1-1