The Atom

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.

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

• Electron
• Proton
• Neutron
• Quark

Tags

NGSS.HS-PS1-8

An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?

• 15

• 31

• 16

• 47

What carries no charge 

• Neutrons
• Electrons
• Protons

What is the Atomic Mass?

• 6.941
• 7
• 3
• 6

How many Protons are in one atom of Lithium?

• 3
• 6
• 7
• 6.941

Tags

NGSS.MS-PS1-1

Which is the smallest?

• electron
• proton
• atom
• neutron 

Tags

NGSS.5-PS1-1

An atom has 5 protons and 7 neutrons. What is the mass number of the atom?

• 5
• 7
• 2
• 12

Tags

NGSS.MS-PS1-1

_{What is in the nucleus of an atom?}

• Neutrons and protons 
• Protons
• Protons and Electrons
• Electrons and Nuetrons

Tags

NGSS.HS-PS1-8

An atom has an atomic number of 19 and a mass number of 29. How many neutrons are in the atom?

• 30
• 19
• 10
• 38

Tags

NGSS.MS-PS1-1