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Atoms, Periodic Table, and Balancing Flashcards | StudBud
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Atoms, Periodic Table, and Balancing
Atoms, Periodic Table, and Balancing
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#PeriodicTable #BalancingEquations #Atoms
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Answers
1
How many protons does Gold have?
11
79
196.67
2.4
2
The center of an atom is called -
Orbital
Nucleus
Shell
Proton
3
The symbol shown means -
gas is given off
heat is supplied
a catalyst is needed
yields
4
The atomic number is the number of ________ in the nucleus.
Protons
Electrons
Neutrons
Quasitrons
5
Which of the following has a negative charge
Protons
Quasitrons
Electrons
Neutrons
6
In a balanced equation, each side has the same number of -
Subscripts
Atoms
Coefficients
Molecules
7
What is the atomic mass of Boron?
10.81
5
2.0
B
8
Which atom could have 6 protons, 8 neutrons, and 6 electrons?
Magnesium
Silicon
Calcium
Carbon
9
What is the coefficient for chromium when the equation is balanced?
2
3
4
1
10
Which of the following is a transition metal?
Lutetium
Tellerium
Arsenic
Radon
11
What charge does the Barium (Ba) ion have?
+6
+2
-6
-2
12
Which of the following best describes a Noble Gas?
Lose electrons
Has 8 valence electrons
Has an oxidation of -1
Metals
13
Elements in Group 16 of the periodic table usually -
Gain electrons when bonding
Act like metals
Solidify at room temperatue
Form large molecules
14
What is the coefficient for H
2
0 when the equation is balanced?
4
3
1
2
15
The elements of which group are most resistant to forming compounds?
Group 18
Group 14
Group 9
Group 1
16
What is the chemical formula for aluminum sulfate?
Al2(SO4)3
Al3(SO4)2
AlSO4
Al6SO4
17
When the equation is balanced, what is the coefficient for MgCl
2
?
4
1
2
0
18
The small number written in formulas to indicate # of atoms of each element is a -
substituent
coefficient
subscript
integer
19
What does Barium (Ba) do to obtain a noble gas configuration?
Loses 6 electrons
Gains 6 electrons
Loses 2 electrons
Gains 2 electrons
20
The large # written before a chemical formula is known as
Integer
Substituent
Coefficient
Subscript
21
The octet rule states that atoms -
Have the electron # of a noble gas
Gives off electrons
Become neutral rather than charged
Obtain the electron configuration of their "s" sublevel
22
Elements in which shaded area undergo the fewest reactions
S
Q
R
T
23
In the equation shown, H
2
O
2
is a ?
catalyst
reactant
product
solid
24
What is the chemical formula for Calcium chloride?
Ca2Cl
Ca2Cl3
CaCl
CaCl2
25
What does Nitrogen (N) do in order to obtain noble gas configuration?
Loses 3 electrons
Gains 5 electrons
Gains 3 electrons
Gains 5 electrons
26
Which of the following contains similar properties?
Sc, Y, Zr
Li, Be, C
Be, Mg, Sr
C, N, O
