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Properties of Atoms and the Periodic Table Flashcards | StudBud
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Properties of Atoms and the Periodic Table
Properties of Atoms and the Periodic Table
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#Physical Science, Ch. 16 #Atoms, #Periodic Table, #SubatomicParticles
Flashcards
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Answers
1
How many energy levels does Aluminum have?
3
4
2
1
2
Particles of matter that make up protons and neutrons are ____.
isotopes
electrons
quarks
atoms
3
The symbol for Iron is Ir.
True
False
4
A chemical symbol represents the ____ of an element.
name
structure
reaction
group
5
Chlorine-35 and Chlorine-37 have a different number of ____.
valence electrons
protons
electrons
neutrons
6
Each row in the periodic table ends with a ______.
nonmetal
noble gas
metal
mettaloid
7
How many valence electrons does Oxygen have?
16
6
2
8
8
Horizontal row of the periodic table are called ___.
clusters
periods
groups
families
9
Which metalloid is in the fourth period and the same group as Carbon?
Silicon
Tin
Germanium
Boron
10
Oxygen and sulfur have similar chemical properties because they have ____.
the same number of neutrons
the same number of protons
the same number of electrons
the same number of valence electrons
11
The area around the nucleus where electrons are found is called the electron chamber.
False
True
12
Protons have ___ charge.
positive
variable
negative
no
13
The smallest piece of an element that still retains the properties of the element is a(n) ____.
molecule
plasma
atom
compound
14
The number of protons in an atom is the mass number.
False
True
15
The symbol for chlorine is C.
True
False
16
Elements that are gases, or are brittle and are poor conductors of heat are ___.
isotopes
nonmetals
metals
metalloids
17
Which of the Group 13 elements is not a metal?
gallium
indium
aluminum
boron
18
Neutrons have ____ charge.
variable
no
positive
negative
19
In general, nonmetals are ____.
good conductors of heat
malleable and ductile
good conductors of electricity
gases at room temperature
20
How many valence electrons does Potassium have?
6
4
3
1
21
Elements in groups 3 through 12 are called ___.
isotopes
metalloids
noble gases
transition elements
22
The nucleus of an atom is __ charged.
negatively
positively
none of these
variably
23
In the periodic table, elements are arranged by increasing ______.
mass number
valence electrons
isotope number
atomic number
24
Electrons have ____ charge.
negative
positive
variable
no
25
Atoms of the same element with different numbers of neutrons are called ___.
metalloids
radioactive
isotopes
transition elements
26
A certain atom as 28 protons, 28 electrons, and 30 neutrons; what is it's mass number?
30
58
56
28
27
A particle that moves around the nucleus is a(n) __.
electron
proton
quark
neutron
28
Elements that have properties halfway between those of metals and nonmetals are classified as _
nonmetals
metals
metalloids
halogens
29
Who developed the first periodic table?
Mosely
Rutherford
Aristotle
Mendeleev
30
The mass number minus the atomic number equals the number of ___
valence electrons
protons
neutrons
electrons
31
The sixth quark is known as the ____ quark.
middle
top
valence
bottom
32
The number of energy levels an atom has is equal to the number of _____.
period number
group number
atomic number
valence electrons
33
Which category of elements have the property of being malleable and ductile?
nonmetals
metals
metalloids
gases
34
Most of the elements in the periodic table are _____ at room temperature and pressure.
solid
plasma
gas
liquid
35
Most of the periodic table is composed of ___.
metals
metalloids
halogens
nonmetals
36
Boron and Silicon are examples of ____.
gases
metals
metalloids
nonmetals
37
Horizontal rows of the periodic table are called ____.
families
periods
clusters
groups
38
The identity of an element is determined by the number of protons.
False
True
39
Most of the mass of an atom is found in its ______.
atomic number
mass number
nucleus
electron cloud
40
How many energy levels does Nitrogen have?
4
1
2
3
41
A(n) _____ is matter that is composed of one type of atom.
compound
element
mixture
molecule
42
Dot diagrams are used to represent ___.
outer level electrons
isotopes
atomic mass
atomic numbers
