Electron Configurations
Orbitals and Charges
Subatomic
Numbers
Modern Theory
100
What is the electron configuration for Li?

1s22s2

100

What four letters represent the orbitals?

s, p, d, f

100
Three subatomic particles.
What are protons, neutrons, and electrons?
100
The sum of protons and neutrons in the nucleus of an atom.
What is mass number?
100

What is the Aufbau principle?

states that electrons fill orbitals that have the lowest energy first

200

What is the short hand electron configuration for Ca?

[Ar]4s2

200

How many electrons can a f orbital have?

14

200
Located outside of the nucleus and have a negative charge.
What are electrons?
200
The number of protons in an atom of a certain element.
What is atomic number?
200

Out of these four orbitals, which one has the most energy: 1p 2d 3d 4s?

3d

300

What is the element that has this configuration: 1s^2 2s^2 2p^6 3s^2

Mg

300

When an atom gains an electron it has this kind of electrical charge.

What is negative?

300
Located inside of the nucleus and have a positive charge.
What are protons?
300
The atomic number of Oxygen.
What is 8?
300
Electrons move from one of these to another when atoms gain or lose energy.
What is an energy level?
400

What is the element that has this configuration: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^2?

Zr

400

When an atom loses an electron it has this kind of electrical charge.

What is positive?

400
Atoms of different elements have different numbers of these.
What are protons?
400
The mass number of Potassium.
What is 39.098?
400
The region of space around the nucleus where an electron is likely to be found.
What is an orbital?
500

What is the electron configuration of Ba?

[Xe] 6s2

500

How many orbitals are found in the d sub level?

5 

500
An atom with the same number of protons but different number of neutrons.
What is an isotope?
500
Mass number - atomic number = ______ __ ________.
What is the numer of neutrons?
500

True or False The orbitals are filled from highest energy level to the lowest energy level.

False

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