WorksheetsUnit 3 Vocab Practice-PTE
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
The electrons in the outermost shell of an atom are called:
a)
Protons
b)
Valence electrons
c)
Neutrons
d)
Core electrons
2.
Which property describes a metal's ability to be hammered into thin sheets without breaking?
a)
Luster
b)
Reactivity
c)
Ductile
d)
Malleable
3.
The ability of a substance to combine chemically with another substance is known as:
a)
Luster
b)
Reactivity
c)
Ductile
d)
Malleable
4.
Which term describes a material that can be pulled or stretched into a thin wire?
a)
Luster
b)
Semiconductor
c)
Ductile
d)
Malleable
5.
The term used to describe how shiny a substance is, like a polished metal, is:
a)
Luster
b)
Reactivity
c)
Ductile
d)
Malleable
6.
The new substance formed as a result of a chemical reaction is called a:
a)
Product
b)
Polymer
c)
Natural Resource
d)
Reactant
7.
A reaction that releases energy, often in the form of heat or light, is described as:
a)
Endothermic
b)
Synthetic
c)
Exothermic
d)
Open system
8.
A reaction that requires more energy that is produced is called:
a)
Endothermic
b)
Polymerization
c)
Exothermic
d)
Conservation of mass
9.
A system that does not let matter in or out is called:
a)
An open system
b)
A natural system
c)
A closed system
d)
A synthetic system
10.
A system that allows matter to enter and leave is called:
a)
An open system
b)
A closed system
c)
An exothermic system
d)
A synthetic system
11.
A material made by humans, rather than occurring naturally is called:
a)
Synthetic
b)
Endothermic
c)
Natural
d)
Reactant
12.
A natural resource is:
a)
A resource that is produced naturally
b)
A resource that is made in a lab
c)
A resource that is both made in a lab and made in nature
13.
The smallest basic unit of matter that retains the properties of an element is called:
a)
Molecule
b)
Nucleus
c)
Compound
d)
Atom
14.
A pure substance consisting of only one type of atom is called:
a)
Molecule
b)
Element
c)
Compound
d)
Mixture
15.
two or more atoms are joined together by chemical bonds is called:
a)
Nucleus
b)
Molecule
c)
Isotope
d)
Proton
16.
The central, dense part of an atom that contains protons and neutrons is called:
a)
Electron cloud
b)
Nucleus
c)
Shell
d)
Orbit
17.
A subatomic particle located in the nucleus and has a positive electrical charge:
a)
Electron
b)
Proton
c)
Neutron
d)
Atom
18.
A subatomic particle found in the nucleus and has a neutral (no) electrical charge is called:
a)
Electron
b)
Proton
c)
Ion
d)
Neutron
19.
The number of protons in an atom is called:
a)
Atomic mass
b)
Atomic number
c)
Mass number
d)
Chemical symbol
20.
What is the total number of protons and neutrons in an atom's nucleus called:
a)
Atomic mass
b)
Isotope
c)
Atomic number
d)
Mass number
21.
The weighted average of the masses of all naturally occurring isotopes of an element is called:
a)
Atomic mass
b)
Atomic number
c)
Mass number
d)
Periodic mass
22.
What is the organized chart of all known chemical elements called?
a)
Atomic chart
b)
Chemical list
c)
Periodic table
d)
Element grid
23.
In the periodic table, what is the vertical column of elements with similar properties called?
a)
Group
b)
Period
c)
Block
d)
Row
24.
In the periodic table, what is the horizontal row of elements called?
a)
Group
b)
Period
c)
Family
d)
Block
25.
What is the one- or two-letter abbreviation for an element called?
a)
Element code
b)
Atomic sign
c)
Chemical symbol
d)
Periodic notation
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