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Properties of Atoms & the Periodic Table
Properties of Atoms & the Periodic Table
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Properties of Atoms and the periodic table. Chap 17 Physical Science
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1
A particle that moves around the nucleus is a(n)
ion
electron
neutron
proton
2
The smallest piece of an element that still retains the properties of the element is a(n) __.
plasma
compound
molecule
atom
3
Paticles of matter that make up protons and and neutrons are
electrons
isotopes
quarks
atoms
4
The area around the nucleus where electrons are most likely to be found is called the
electron cloud
electron chamber
electron zone
none of these
5
The central core of an atom is called the
nucleus
neutron
proton
hub
6
The atomic mass minus the atomic number equals the number of
quarks
electrons
protons
neutrons
7
The atomic mass is equal to the number of __.
protons & electrons
electrons & neutrons
protons & neutrons
protons, neutrons & electrons
8
Elements in the middle of the periodic table, group 4-7 are called the
representative elements
alkaline earth metals
metalloids
transition elements
9
The identity of an element is determined by the number of
neutrons
electrons
protons
nuclei
10
Elements that have properties of both metals and nonmetals are
istopes
alloys
metalloids
allotropes
11
Neutrons have a ____ charge.
variable
positive
no
negative
12
Horizontal rows of the periodic table are called
periods
clusters
families
groups
13
Atoms of the same element with different numbers of neutrons are called
transition elements
allostropes
isotopes
metalloids
14
Which of the following is an element that would have similar properties to those of oxygen
hydrogen
neon
sulfur
sodium
15
Protons have a __ charge.
positive
variable
no
negative
16
Developed the first periodic table
Priesto
Dimitri
Moseley
Mendeleev
17
Each energy level of an atom has a maximum numer of __ it can hold.
eight
protons
electrons
neutrons
18
How many outer energy level electrons do magnesium and calcium have
one
three
four
two
19
Electrons have a ___ charge.
no
positive
variable
negative
20
The weighted average mass of the mixture of isotopes is the
mass number
atomic mass unit
average atomic number
average atomic mass
21
A chemical symbol represents the __ of an element
name
reaction
structure
type
22
The elements arranged in vertical columns in the periodic table are called
periods
groups
families
both B & C
23
A(n) __ is matter that is composed of one type of atom.
mixture
element
compound
molecule
24
The number of protons in an atom is called the
atomic number
average atomic mass
atomic mass
mass number
25
Dot diagrams are used to represent
isotopes
the structure of the nucleus
outer electrons
atomic number
