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Eighth Grade Periodic Table Flashcards | StudBud
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Eighth Grade Periodic Table
Eighth Grade Periodic Table
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A #science Quiz about #atoms and the #periodictable.
Flashcards
22 cards
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Questions
22
Answers
1
Periods go _______ the Periodic Table and determine _______ ________.
across, valence electrons
across, energy levels
up and down, energy levels
up and down, valence electrons
2
Reactivity describes:
what an atom can bond to
how an atom behaves or interacts
the size of an atom
the number of energy levels
3
How many valence electrons does this atom contain?
2
6
4
3
4
What is the atomic MASS of this atom?
30 amu
8 amu
10 amu
20 amu
5
How many VALENCE electrons does this atom contain?
48
6
32
16
6
Would this element be highly reactive or nonreactive?
Nonreactive
Highly reactive
7
Atomic number is ALWAYS equal to the number of
protons
electrons
valence electrons
neutrons
8
Reactivity is determined by the number of
valence electrons
protons
energy levels
electrons
9
Groups go __________ the Periodic Table and determine the number of _____________.
up and down, energy levels
across, energy levels
across, valence electrons
up and down, valence electrons
10
Which two elements have similar chemical properties?
Palladium and Copper
Nickel and Copper
Palladium and Silver
Nickel and Palladium
11
Same number of valence electrons =
similar reactivity
same energy levels
same period
similar chemical properties
12
Group 18 is also called _____________
8A
metals
halogens
noble gases
13
What is the atomic MASS of an atom with 8 protons, 8 neutrons, and 8 electrons?
8 amu
24 amu
16 amu
14
Atomic mass is equal to ______
Protons + Neutrons
Protons + Neutrons + Electrons
Protons + Electrons
Neutrons + Electrons
15
What subatomic particles are on the OUTER-MOST energy level?
Protons
Reactive electrons
Valence electrons
Electrons
16
The order of electrons on the first three energy levels is:
2, 8, 8
2, 8, 2
2, 4, 8
8, 8, 2
17
Elements in the same GROUP have ________
same energy levels
similar chemical properties
high reactivity with water
same number of valence electrons
18
Group 18 is _________
highly reactive
nonreactive
19
How many energy levels does this atom contain?
1
2
3
4
20
Choose the answer that best describes NEUTRONS
Located in the nucleus, positive, 1 amu
Located in the nucleus, neutral, 0 amu
Located in the nucleus, negative, 1 amu
Located in the nucleus, neutral, 1 amu
21
An atom with a FULL outer energy level is
highly reactive
nonreactive
22
Which element would react MOST SIMILAR to Sodium?
Lithium (Li)
Beryllium (Be)
Calcium (Ca)
Magnesium (Mg)
