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Periodic Table Basics
Periodic Table Basics
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Basics of the periodic table
Flashcards
22 cards
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Questions
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Answers
1
What is the chemical formula for calcium carbonate?
Ca2CO3
Ca(CO3)2
CACO3
CaCO3
2
How many electrons does an element in Group 6 gain and what is its final charge?
gain 3 electrons, become -3
gain 4 electrons, become -4
gain 2 electrons, become -2
gain one electron, become -1
3
A neutral atom becomes positive when it ....?
loses an electron
gains a proton
gains an electron
loses a proton
4
Ions become attracted to each other because....???
they think they're cute
they have no charges
they have similar charges
they have opposite charges
5
What kind of pattern do metalloid elements make on the periodic table?
heart
stairstep
amoeba
square
6
How many electrons does an element in Group 5 gain and what its final charge?
gains 3 electrons, becomes -3
gains one electron, becomes -1
gains 2 electrons, becomes -2
gains 4 electrons, becomes -4
7
What is the atomic number of the element below?
(6)
16
8
16.00
8
What is the chemical formula for zinc and chlorine?
ZnCl
ZnCl2
Zn2Cl
Zn2Cl3
9
When writing the formula for a compound involving two elements, which element goes first?
it depends on the elements
the negatively charged one
either one is cool
the positively charged one
10
Why are the elements in Group 8 called Noble gases?
they are among the oldest elements known to man
they were named after chemist Alfred Noble
they have 8 electrons in their outermost energy level
because they're royalty, dude
11
What does the atomic number of silver represent?
the number of electrons
the number of atoms
the number of protons
its order of importance
12
What is a polyatomic ion?
two or more ions in the same place
a unit of multiple atoms with a single charge
ions of atoms with different charges
many multiple ions moving together
13
What do the groups/families (vertical columns) in the periodic table tell you about elements?
Not much, it's just numbering
the number of electrons in the outer energy level
the number of neutrons in the nucleus
the number of protons in the nucleus
14
How many electrons does an atom need in its outermost energy level to become stable?
4
2
8
6
15
What is the chemical formula for aluminum and oxygen?
AlO2
Al2O2
Al2O3
Al3O2
16
What is the chemical formula for hydrogen and oxygen?
OH2
HO
HO2
H2O
17
The sum of the charges of elements in a compound must be....????
zero
negative
positive
any number is OK
18
What do the periods (horizontal rows) in the periodic table tell you about elements?
how many neutrons the elements have
how many electrons the elements have
how many energy levels the element has
nothing, it's just numbering
19
What is the chemical formula for silver sulfate?
Ag(SO4)2
Ag2(SO)4
Ag2SO4
AGSO4
20
How are the elements in the periodic table categorized?
as solids, liquids, gases
by order of importance
metals, transition metals, nonmetals
in order of discovery
21
How many electrons does an element in Group 7 gain and what is its final charge?
gain one electron, become -1
gain 3 electrons, become -3
gain two electrons, become -2
gain 4 electrons, become -4
22
What is the chemical formula for magnesium hydroxide?
Mg2OH
Mg(OH)2
MgOH2
MgOH
