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Valence Electrons, Compounds, & Chemical Equations Flashcards | StudBud
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Valence Electrons, Compounds, & Chemical Equations
Valence Electrons, Compounds, & Chemical Equations
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1
How many valence electrons does Potassium (K) have?
8
1
2
19
2
Identify the reactant(s)....
O2 and 2H2O
2H2O2, 2H2O, and O2
2H2O2
3
How many valence electrons are in Neon?
5
4
8
2
4
A Bohr diagram represents what?
The atomic structure with all the electrons
The outer shell electrons only
The nucleus of the atom
The protons and neutrons only
5
How many valence electrons does Chlorine have?
8
7
17
2
6
How many valence electrons are in Carbon?
1
4
3
6
7
Another term for the outer shell electrons is:
Valence electrons
Ring electrons
Negative electrons
Orbital electrons
8
This element will easily combine with which other element?
Bromine
Hydrogen
Xenon
Neon
9
How many valence electrons are in Aluminum?
1
6
3
28
10
We must balance chemical reaction equations because......
Law of chemistry
Law of conservation of mass must be met
Sometimes new atoms are created in a chemical reaction
Law of Conservation of Energy must be met
11
The subscript of the reactant, aluminum, is.....
2
3
4
1
12
Balance the equation.....
1 H2 + 2 O2 --> 1 H2O
2 H2 + 2 O2 --> 1 H2O
2 H2 + 1 O2 --> 2 H2O
1 H2 + 1 O2 --> 1 H2O
13
How many protons are found in Beryllium?
2
6
8
4
14
What type of diagram is this?
Planetary Model
Lewis Dot
Bohr Model
Einstein Spot Modl
15
In what group # does Neon belong?
8
2
18
1
16
Identify the product(s)....
2H2O and 2H2O2
2H2O and O2
2H2O2
17
What are valence electrons?
a compound made from carbon atoms
the elements on the periodic table
unevenly shared electrons
electron located in the outermost shell of the atom
18
All of the elements in Group 2 have ____ valence electrons?
2
8
1
12
19
The coefficient of oxygen is.....
4
(g)
2
3
20
In what period # can Neon be found?
2
18
3
1
21
How many valence electrons are in Hydrogen?
7
0
1
10
22
This element will easily combine with elements in what Group on the Periodic Table?
Group 2
Group 17
Group 1
Group 16
23
This element will easily combine with which other element?
Chlorine
Calcium
Magnesium
Hydrogen
24
Group 18 elements have 8 valence electrons which means that they are
metals
stable or non-reactive
reactive
metalloids
25
Is the equation below balanced?
Only in outer space
Yes
No
26
How many valence electrons does Beryllium have?
4
3
1
2
