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Electron Configuration
100
Name the three subatomic particles within an atom
Proton Neutron Electron
100
If an atom has 12 protons and 15 neutrons, what is its isotope name?
Magnesium - 27
100

How many electrons does Li+ have?

2

100
What do Carbon-12 and Carbon- 13 have in common?
Same number of protons (atomic number)..
100

What is the electron configuration notation of Lithium?

1s22s1

200
Where are protons located?
The nucleus
200
If an element has 20 protons, 20 electrons, and 20 neutrons, What is its ATOMIC NUMBER?
20 Atomic Number = Number of Protons
200

What is an ion?

A charged atom

200

Please complete the Bohr model for Al3+

Protons = 13

Neutrons = 14

Electrons = 10

200

Write the orbital notation for Cl

All the arrows filled until 3p5

300

In the quantum model what are the orbitals?

s, p, d, f

300
An atoms Mass Number is 30.... Keeping in mind that the atomic number is 17, what can you tell about the atom? ((Hint: How do you find the number of neutrons?))
It has 13 neutrons.. mass number - atomic number = neutrons 30 - 17= 13
300
Does oxygen give or take electrons when he becomes an ion?
Take
300
Describe the relationship between protons and the atomic number.
They are the same numbers
300

Where do the s, p, d, and f orbitals come from?

Quantum Numbers

400

Protons + Neutrons = ______________

Mass

400
Neutral atoms always have an equal number of what two subatomic particles?
protons and electrons
400

The period number on the Periodic table (1-7) tells us how many _______ an atom has

Orbital Shells (energy levels)

400

Draw the Lewis dot diagram for Al + Cl --> ______

AlCl3 --> need to have one Al with three electrons and 3 Cl with seven electrons

400

What does the Aufbau Principle say?

Electrons fill the subshell from the lowest energy level, then they will fill subshells of higher energy

500

What is the spin quantum number symbol?

ms

500

Calculate the average atomic mass:

Li-6      7.59%

Li-7      92.41%

6.93 amu

500
The group tells us how many ________ an atom has.
Valence (Outer) Electrons
500
To change Li to Li+, you need to:
remove one electron
500

Write the noble gas notation for W.

[Xe] 6s24f145d4