Basic Atom

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

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

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

an atom with atomic number 6 and a mass number of 13 would have how many protons

• 6

• 13

• 7

• cannot be determined

Tags

NGSS.MS-PS1-1

What does the 1.00794 stand for?

• Hydrogen
• average atomic mass

• mass number

• atomic number

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

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Tags

NGSS.HS-PS1-8

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

Tags

NGSS.MS-PS1-1

Basic building block of matter

• atom

• molecule

• element

• cell

Tags

NGSS.MS-PS1-1

The number of protons found in an atom

• atomic number

• atomic mass unit

• atomic mass number