Atoms, Lewis Dot and Bohr Diagrams

Label the atom!

e

d

c

b

a

Nucleus

Neutron

Electron

Electron cloud

Proton

Tags

NGSS.MS-PS1-1

Which subatomic particle has a positive charge and a mass of 1AMU?

• Proton

• Neutron

• Electron

• Nucleus

Which subatomic particle has a neutral charge and a mass of 1AMU?

• Proton

• Neutron

• Electron

• Nucleus

Which subatomic particle has a negative charge and a mass of 0 or too small to count?

• Proton

• Neutron

• Electron

• Nucleus

This part of the atom holds most/all of the mass of the atom.

• Proton

• Neutron

• Electron

• Nucleus

What does it mean when an atom is neutral?

• It has the same number of neutrons and electrons

• It has the same number of protons and electrons

• It has the same number of protons and neutrons

• It has a different number of neutrons than on the Periodic Table

If an atom of Carbon has 6 protons and 6 electrons what does that tell us about it?

• We can subtract those to get zero neutrons

• The mass of this atom is 12

• This atom is neutral, or has a charge of zero

• The charge is 6 since protons are positive

Tags

NGSS.MS-PS1-1

A neutral atom of Krypton has....

• 36 protons and 36 electrons

• 36 protons and 36 neutrons

• 36 electrons and 36 neutrons

• 0 electrons and 0 protons

Tags

NGSS.MS-PS1-1

How many valence electrons does Sodium (Na) have?

• 1

• 2

• 3

• 4

How many valence electrons does Barium (Ba) have?

• 1

• 2

• 3

• 4