Atomic Structure

Particles that have the same charge

• Attract
• Repel
• Show no action
• None of the above

Particles that have different charge will

• Attract
• Repel
• Show no action
• None of the above

Tags

NGSS.HS-PS2-4

The electron is not included in the calculations for the atomic mass because

• It has negative charge

• It is located in the outer energy levels of the atom

• Hiis mass is basically zero

• It attracts neutral particles

An atom has 9 protons, therefore its atomic number is

• 9

• 18

• 3.5

• None of the above

Tags

NGSS.MS-PS1-1

The arrow in the picture is pointing to

• The atomic number
• The atomic mass
• The atomic structure
• The atomic charge

Tags

NGSS.MS-PS1-1

The atomic number of an atom is 22, therefore it has_______electrons

• 11

• 22

• 44

• None of the above

Tags

NGSS.MS-PS1-1

The atomic number tells us

• Only the number of protons

• Only the number of electrons

• The atomic mass

• both the number of protons and electrons

Find the value of N
45 =  N - 24

• 48
• 21
• 69
• None of the above

The arrow is pointing to the

• Atomic number
• Atomic mass
• Atomic structure
• None of the above

Tags

NGSS.HS-PS1-1

True of False
The neutron has a mass of 1 amu

• True
• False