Avery Hyman Practice for Test

How are electrons arranged in an atom?

• In groups of five
• In energy levels
• By color
• By shape

Tags

NGSS.HS-PS1-1

An element with five valence electrons is

• phosphorus
• oxygen
• beryllium
• rubidium

Tags

NGSS.HS-PS1-1

How many electrons are in the outer (valence) shell of Chlorine (Cl)?

• 1
• 3
• 6
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!

• noble gases
• transition
• halogens
• borons

Tags

NGSS.HS-PS1-1

Bohr found that when atoms absorb precise amounts of energy (quanta), the electron(s) will

• move to another atom.
• fall into the nucleus.
• move to higher energy levels.
• go to ground state.

How many electrons can reside in the third energy level?

• 8
• 18
• 10
• 6

When an electron moves toward the nucleus, energy is

• absorbed.
• emitted.
• repelled.
• refracted.

An emission spectrum is produced when

• electrons move to lower levels.
• atoms absorb energy.
• electrons move to higher levels.
• atoms have too much energy.

Which scientist proposed a model of the atom in which the electrons are orbiting at different energy levels?

• Niels Bohr

• James Chadwick

• John Dalton

• Ernest Rutherford

Tags

NGSS.HS-PS1-1

Every element has its own unique atomic spectra.

• True
• False

Tags

NGSS.HS-PS4-3