Counting Subatomic Particles Review

What property determines if an atom is identified as Flourine?

• it has 10 neutrons

• it has an atomic mass of 19

• it has 9 protons

• Its element symbol is Fl.

Tags

NGSS.MS-PS1-1

Which statement is best used to identify the Bohr model as Aluminum?

• It has 13 protons.

• It has 3 valence electrons.

• It has 3 energy levels.

• It has 14 neutrons.

Tags

NGSS.MS-PS1-1

Which element is shown in the Bohr model?

• Helium because it has 2 valence electrons

• Magnesium because it has an atomic number of 12.

• Chromium because is has an atomic mass of 24.

• Argon because it has 18 total subatomic particles.

Tags

NGSS.MS-PS1-1

This model shows which element? Assume it is a neutral atom.

• Oxygen

• Radium

• Barium

• Cannot be determined

Tags

NGSS.MS-PS1-1

This model shows which element? Assume it is a neutral atom.

• Helium

• Beryllium

• Manganese

• Silicon

Tags

NGSS.MS-PS1-1

APE means...

• Atomic # = Protons = Electrons

• Atomic # - Protons = Electrons

• Atomic # = Protons + Electrons

• Atomic # = Protons - Electrons

Tags

NGSS.MS-PS1-1

MAN means... (there may be more than one correct answer)

• Mass # = Atomic # - Neurtons

• Mass # = Atomic # + Neutrons

• Mass # - Atomic # = Neutrons

• Mass # = Atomic # = Neutrons

Tags

NGSS.MS-PS1-1

APE does NOT work if the atom is a(n)...

• neutral atom

• isotope

• ion

An element has 5 protons, 6 neutrons, and 5 electrons. What is the mass number?

• 5

• 10

• 11

• 16

Tags

NGSS.MS-PS1-1

An element has 5 protons, 6 neutrons, and 7 electrons. What is the charge of the atom?

• +2

• -1

• +1

• -2

Tags

NGSS.MS-PS1-1