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WorksheetsU2 Quiz 2
Total questions: 34
Worksheet time: 33mins
The innermost 1st energy level has a maximum of how many electrons?
1
2
6
8
How many electrons can go in the Second energy level?
2
8
18
32
How many valence electrons does Aluminum Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
Valence electrons are the...
Innermost electrons
Middle electrons
Outermost electrons
Any electrons
Atomic number represents which subatomic particle?
electrons
protons
neutrons
All of the elements in a period have the same number of _____.
energy levels
valence electrons
protons
electrons
All of the elements in a group have the same number of _____.
energy levels
valence electrons
protons
electrons
Is this the correct Bohr model for silicon (Si)?
Yes
No
Different isotopes of an element contain different numbers of ___.
protons
neutrons
electrons
elements
If a proton is added or removed from an atom, what happens?
It becomes a different element.
It becomes a different isotope.
Nothing happens.
How many neutrons are in 1 atom of Carbon-13?
6
13
7
20
How many neutrons are in an atom of Nitrogen-16?
9
7
16
20
How many protons are in an atom of Nitrogen-16?
7
9
16
What is the difference between Neon-20 and Neon-22?
They have different numbers of electrons.
They have different numbers of neutrons.
Only 1 is radioactive.
No difference.
Choose the correct electron configuration for Beryllium (Be).
1s1
1s2 2s2
1s2 2s2 2p1
Choose the correct electron configuration for Chlorine (Cl).
1s2 2s2 2p1
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p5
Which element's atom is larger? Nitrogen or Phosphorus?
Nitrogen
Phosphorus
Within periods on the periodic table: Size decreases as you go down a group
Flase
True
Which element's atom is the smallest?
Rhodium
Silver
Cadmium
Tin
Which order is correct from largest to smallest atomic radius?
Thallium, Indium, Gallium, Boron
Boron, Thallium, Indium, Gallium
Boron, Gallium, Indium, Thallium
Thallium, Gallium, Indium, Boron
What is formally known as the distance from the nucleus of an atom and to the valence shell?
Atomic radius
Electron Affinity
Ionization Energy
Electronegativity
Which of the following electronic transitions in the oxygen atom will result in light emission?
ni = 1 ⟶ nf = 2
ni = 3 ⟶ nf = 2
ni = 1 ⟶ nf = 3
ni = 2 ⟶ nf = 3
In order to go from ground state to an excited state, an electron must
emit energy
absorb energy
wiggle
When an electron returns to ground state from an excited state, the atom will (a)
If an electron moves from n=4 to n=2 it ____
absorbs energy
releases energy
How many electrons are in Potassium
19
39
20
58
How many neutrons are in magnesium?
12
24
25
36
What is the atomic number of silicon?
14
28
42
7
What is the best mass number for silver?
47
107
108
154
How many neutrons does beryllium have?
4
5
9
13
How do you find the number of neutrons in an atom?
It's the same as the atomic #
It's the same as the mass number
Subtract the atomic # from the mass number
Add the mass number and the atomic #
