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Periodic Table
Periodic Table
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Periodic Table 8th Grade
Flashcards
31 cards
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Practice quiz
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Questions
31
Answers
1
Outer Electrons =
Valence Electrons
Energy Levels
Neutrons
Ions
2
Elements on the left side of a period always have higher atomic mass than elements on the right side.
True
False
3
Group 17?
Halogens
Alkali metals
Alkali earth metals
Noble gases
4
Which of the following is NOT a property of metals?
Ductile
Brittle
Conducts heat and electricity
Malleable
5
Elements along the stairstep line have some properties of metals and some properties of nonmetals.
True
False
6
True or False: Elements at the bottom of a group have more protons than elements at the top of the group.
True
False
7
Which group are known as the noble gases?
17
7
18
1
8
Horizontal rows are called?
Periods
Rows
Columns
Groups
9
Which group is the most stable?
Alkali Metals
Noble Gasses
Alkaline Earth Metals
Halogens
10
Which element is pictured in the diagram?
Na
K
Li
Sc
11
Which of these determines the identity of an element?
Number of energy levels
Number of protons
Number of neutrons
Number of electrons
12
Which of these elements is a nonmetal?
Sb
Li
P
Si
13
The majority of the elements in the periodic table are...?
Metalloids
Non-metals
Metals
Not elements
14
This element has an atomic mass of 55?
Manganese
Iron
Chromium
Cesium
15
Which element has 31 protons?
Silicon
Gallium
Phosphorus
Potassium
16
Group 2 Period 4
Titanium
Zirconium
Calcium
Beryllium
17
Vertical columns are called?
Columns
Groups
Rows
Periods
18
How are the elements in the modern Periodic Table Arranged?
by atomic mass
by date of discovery
in alphabetical order
by number of protons
19
Which subatomic particle has a negative charge?
Protons
Electrons
Neutrons
20
Group 1 elements are reactive because...
They need to gain one more electron
They have a full outer shell
They have only 1 electron on their outer shell
They need to be left alone
21
I have 2 electrons on my first shell and 8 electrons on my second shell. What element am I?
Mg
He
O
Ne
22
Which element is pictured in the diagram?
Be
Ne
O
N
23
Which elements in the Periodic Table are least likely to combine with other elements?
Halogens
Transition Metals
Noble Gases
Alkaline Earth Metals
24
Which of the following is a metalloid?
Si
H
Al
He
25
Atomic number DOES NOT equal...
# of protons
# of neutrons
# of electrons
26
Which elements touch the staircase?
Metals
Nonmetals
Metalloids
Liquids
27
Which of the following is the name of a charged atom?
Allotrope
Isotope
Ion
Isone
28
Which element has the same chemical properties as O?
Nitrogen
Sulfur
Chlorine
Hydrogen
29
The nucleus of an atom contains...
Protons and electrons
Only neutrons
Protons and neutrons
Only electrons
30
Which of the following is liquid nonmetal at room temperature?
Ar
Cl
Br
Hg
31
What is the most reactive group?
Alkaline earth metals
Noble Gases
Halogens
Alkali Metals
