Chemistry Flame Assessment

When an atom gains or loses an electron, the atom is called a(n)

• electron

• ion

• particle

• nucleus

What is the net charge of an atom with 32 protons, 31 neutrons, and 28 electrons?

• +1

• +3

• -4

• +4

When an atom is at the ground state, it is...

• absorbing energy

• releasing energy

• exploding

• resting

Tags

NGSS.HS-PS1-2

When an atom gains an electron, it forms a _____ ion.

• positive

• negative

• neutral

• explosive

What happens when energy is added to an atom?

• The electrons "jump" to the an energy level that is closer to the nucleus.

• The electrons "jump" to the next energy level away from the nucleus.

• The atom explodes!

Tags

NGSS.HS-PS1-1

When an atom is at the excited state, it is...

• absorbing energy

• releasing energy

• exploding

• resting

When we did the flame tests, we saw light and color in the form of fire. This happened because...

• The atom was absorbing energy.

• The atom was releasing energy.

• The atom was exploding.

Tags

NGSS.HS-PS1-4

To find the amount of energy released in an atom...

• energy released = excited state - ground level

• energy released = ground level - excited state

• energy released = excited state + ground level

• energy released = excited state / ground level

When a solution containing the sodium ion is heated in a flame it gives off this color

• yellow

• red

• orange

• green

Tags

NGSS.HS-PS4-3

Shorter wavelengths of electromagnetic radiation have ______ energy than longer wavelengths.

• less

• more

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4