Intro to Atoms

True or False? Neutrons have a negative charge

• True
• False

The first energy level can hold up to how many electrons?

• 8
• 4
• 2
• 5

Tags

NGSS.MS-PS1-1

What is the atomic mass of "F"

• 9
• 18
• 10
• 19

Which of the following is a positively charged subatomic particle found in the nucleus of an atom?

• Electron
• Proton
• Neutron
• Quark

Which of the following is a neutrally charged subatomic particle found in the nucleus of an atom?

• Electron
• Proton
• Neutron
• Quark

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

A negatively charged particle that moves around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Most of the mass in an atom is concentrated in the...

• electrons
• nucleus
• protons
• empty space

How many neutrons does Nitrogen have?

• 14
• 7
• 15
• 18

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

• nucleus. 
• electron cloud.
• core. 
• center.