Electrons in Atoms

When an electron moves from a lower to a higher energy level, the electron _____.

• gains a certain amount of energy

• gains any amount of energy

• loses energy

• moves closer to the nucleus

Tags

NGSS.HS-PS3-1

The lowest energy state of electrons in an atom is called the _____.

• dependent state

• excited state

• configuational state

• ground state

The light given off when electricity is passed through sodium gas is called sodium's _____.

• wavelength

• emission spectrum

• light

• continuous spectrum

Tags

NGSS.HS-PS4-4

In Bohr's model of the atom, where are the electrons and protons located?

• the electrons orbit the protons, which are at the center of the atom
• the electrons and protons move throughout the atom
• the electrons and protons are located throughout the atoms, but they are not free to move
• the electrons are stationary around the protons, which are at the center of the atom

Emission of light from an atom occurs when the electron _____.

• moves within its atomic orbital

• jumps from a lower to a higher energy level

• falls into the nucleus

• drops from a higher to a lower energy level

Tags

NGSS.HS-PS4-3

What is the maximum number of electrons in the second energy level?

• 18
• 8
• 32
• 2

Tags

NGSS.HS-PS1-1

The quantum model of the atom _____.

• defines the exact path of an electron around the nucleus

• has the electrons in orbits

• has the electrons in orbitals

• was proposed by Niels Bohr

In the Bohr model, if an atom has 6 electrons, how many will be in the second energy level?

• 2
• 4
• 6
• none

When an electron moves from a lower to a higher energy level, the electron _____.

• gains a certain amount of energy

• gains any amount of energy

• loses energy

• moves closer to the nucleus

Tags

NGSS.HS-PS3-1

The method that describes the possible positions of electrons in an atom is its _____.

• valence electron

• ground-state level

• electron configuration

• orbital