The smallest subatomic particles are:

• Electrons
• Elactrons
• Elictrons
• Olitrons

The centre of an atom is the:

• Newcleus
• Nuclus
• Nuclues
• Nucleus

Positively charged subatomic particles are called:

• Protins
• Protens
• Protons
• Protions

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 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

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

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

What number indicates an electron?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS2-3