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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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8th Grade Physical Science
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
_________________ can corrode and generally lose electrons when they react.
Metals
Non-metals
Metalloids
Gasses
2
____________________ have no charge; they are neutral.
Electrons
Neutrons
Atoms
Protons
3
Which particles in atoms have a negative electric charge?
Protons
Electrons
Neutrons
Nucleus
4
If an element has a mass number of 20 and has 10 protons, how many neutrons does it have?
2
20
10
5
5
________ is a small particle that makes up matter.
Atom
Electron
Proton
Cell
6
________ is the top number above the element symbol.
Atomic Number
Atomic Mass
Element symbol
Atomic Weight
7
Most metals are ________ at room temperature.
Liquid
Crystal
Solid
Gas
8
The horizontal rows in the periodic table are known as ____________________.
Sections
Groups
Families
Periods
9
The majority of elements are ________.
Nonmetals
Metals
Metalloids
Gases
10
In a normal atom, the number of protons equals the number of _____.
Neutrons
Nuclei
Isotopes
Electrons
11
Fluorine, chlorine, bromine, and iodine are part of a family called _____.
Noble Gases
Alkali Metals
Halogens
Transitional Metals
12
How many elements are there?
125
84
100
118
13
Which group of elements shares characteristics with both metals and nonmetals?
Metalloids
Lanthanides
Halogens
Salts
14
________ is the number of protons plus the number of neutrons.
Element Number
Atomic Mass
Mass Number
Isotope
15
________ are dull and brittle.
Liquids
Nonmetals
Metals
Gases
16
A material is said to be malleable if it _____.
can be pulled out, or drawn, into a long wire
is a mixture of a metal with at least one other element
can transfer heat or electricity to another material
can be hammered or rolled into flat sheets and other shapes
17
Who is the philosopher that made one of the earliest descriptions of an atom?
Lavoisier
Kashyapa
Newton
Democritus
18
What information in the periodic table indicates the number of protons in an atom?
the element’s chemical symbol
the element’s atomic mass
the element’s atomic number
the position of the element in its column
19
________ are found on the right side of the periodic table.
Metals
Metalloids
Synthetics
Nonmetals
20
The elements in a column of the periodic table _____.
have the same mass
have similar symbols
have similar properties
are in the same period
21
Which scientist discovered the electron?
Democritus
Thompson
Dalton
Rutherford
22
Metals can be drawn into wires without breaking are _______
Stripped
Malleable
Ductile
Brittle
23
Which scientist discovered the nucleus of an atom?
Rutherford
Thompson
Bohr
Schrodinger
24
________ is the number found below the element symbol.
Element name
Atomic Number
Symbol
Atomic Mass
25
Which is not a noble gas?
Neon
Oxygen
Argon
Helium
26
________ is the positively charged central part of the atom.
Nucleus
Electron
Proton
Neutron
27
________ organizes and displays information about the elements.
Atomic theory of matter
Periodic Table
Solar Model
Law of conservation of matter
28
_______________ can be used to make semiconductors.
Metals
Metalloids
Gasses
Non-metals
29
________ are positively charged particles in the nucleus.
Neutrons
Atoms
Electrons
Protons
30
The modern periodic table is organized by
Element Symbol
Number of protons in the nucleus of an atom
Valence Electrons
Atomic weight
31
________ are good conductors of heat and electricity.
Metals
Metalloids
Nonmetals
Gases
32
Outer energy level of an atom can hold a maximum of ____ electrons, except hydrogen and helium.
8
2
18
22
33
Each element is given a specific _________________ that usually consists of one or two letters.
Name
Number
Symbol
Atomic Number
34
Nonmetals are ____________________ conductors of heat and electricity.
Excellent
Poor
35
The elements that do not ordinarily form compounds are _____.
Group 4
Metals
Noble Gases
Halogens
