PROTON NUMBER

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

Tags

NGSS.MS-PS1-1

Where is the proton located?

• In the very dense nucleus
• Floating around in the negative electron cloud
• the loose nucleus
• the positive electron cloud

Tags

NGSS.MS-PS1-1

What number on the element key tells you how many protons an element has?

• Atomic Mass
• Element name
• Atomic number
• Element Symbol

Which subatomic particle causes the nucleus to have a positive charge?

• Neutron
• Electrons
• Protons
• Valence electrons

Tags

NGSS.HS-PS1-8

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.MS-PS1-1

Isotopes of an element have a different number of...

• Protons

• Neutrons

• Electrons

• Mass

Tags

NGSS.HS-PS1-8

A neutral atom of the isotope ²⁶₁₂Mg would consist of

• 12 protons, 26 neutrons, 26 electrons
• 26 protons, 12 neutrons, 26 electrons
• 26 protons, 14 neutrons, 14 electrons
• 12 protons, 14 neutrons, 12 electrons

Tags

NGSS.MS-PS1-1

What is the mass number of the element shown?

• 15

• 7

• 8

• 0

Tags

NGSS.MS-PS1-1

An atom has 12 protons and 13 neutrons in its nucleus. Which is the correct symbol?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

12 protons, 10 electrons, 12 neutrons

• $^{24}Mg^{-2}$

• $^{24}Cr^{+2}$

• $^{24}Cr^{-2}$

• $^{24}Mg^{+2}$

Tags

NGSS.MS-PS1-1