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Atoms and the Periodic Table
How many neutrons does Chlorine have?
What is strange about Hydrogen?
Atoms and the Periodic Table
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1
What is strange about Hydrogen?
Has a mass of 1
Has 1 electron
Has 1 proton
2
How many neutrons does Chlorine have?
30
17
18
35
3
What is the valence and number of energy levels of Rb, Rubidium?
Valence 5, 1 energy level
Valence 2, 4 energy levels
Valence 1, 3 energy levels
Valence 1, 5 energy levels
4
The boiling point of water is
0 C
32 F
100 F
100 C
5
Water freezes at
0 C
32 C
100 C
37 C
6
When the sun come out and a puddle disappears, this is an example of a
Chemical reaction due to reactivity
Physical reaction due to a state of matter change.
Chemical reaction due to flammability
Physical reaction due to mass change
7
Where are the metals located on the periodic table?
to the left of the stair step, zig zag line
toward the top of the chart
in the upper right corner
around the zig zag stair step line
8
When a liquid turns into a solid, energy is
Stays the same
Increased
Decreased
9
The periodic table of elements are arranged by ?
the order they are discovered
the color of elements
the atomic mass
the atomic number & atomic mass
10
Why are atomic mass numbers shown with decimals?
To be more precise and show energy level masses.
The electrons cause this
The isotope masses of the nucleus vary & are averaged
The proton numbers vary
11
How many electrons does Chlorine have?
17
18
30
35
12
Neutral means that the electrical charge of an atom
is an ion
is negative
is neither positive or negative
is positive
13
An example of a chemical reaction is
Water boiling
sugar dissolving in water
Baking bread
Candle wax hardening
14
How many protons does Potassium have?
19
39
20
10
15
What are the rows of the periodic table called?
periods
families
groups
sections
16
Which element is a metal?
Cl, Chlorine
C, Carbon
Zn, Zinc
O,Oxygen
17
Liquids that change into gases are called?
Freezing
Condensation
Evaporation
Deposition
18
An ice cube of water melts at
37 c
100 C
32C
0 C
19
A charged atom is a/an
Isotope
Nucleus
Valence
Ion
20
The subatomic particle that carries a positive charge is the
neutron
proton
electrode
electron
21
What information does the atomic number give?
number of electrons and neutrons
number of neutrons and protons
number of protons and electrons
number of neurons and ions
22
A physical reaction
Changes into a new substance
Can be easily reversed
Cannot be reversed easily
23
Which element am I , valence of 3, 3 energy levels.
B, Boron
Ge, Germanium
He, Helium
Al, Aluminum
24
The center of the atom is a
neutral
neutron
nucleus
neuron
25
When a liquid changes to a gas energy is
Increased
Must stay the same
Decreased
26
Where are the lightest elements found on the periodic table?
the lower right corner
the upper left corner
the upper right corner
the middle
27
The metalloids are found
On the bottom of the periodic table
To the left of the stair step
On or under the stair steps
To the right of the stair steps
28
The letters which represent an element in the box are called?
symbol
molecule
formula
element name
29
Which element is a non metal?
Ag, Silver
S, Sulphur
Si, Silicon
Fe, Iron
30
The most energetic molecules are found in a
Liquid
Gas
Plasma
Solid
31
The formula 5 H
2
O shows 5 batches of water which means
5 neutrons of water
5 protons of water
5 molecules of water
5 atoms of water
32
Family 17 on the periodic table is called the ? family?
noble gases
alkalis
alkaline earth
halogens
33
The electrons of an atom are found in
the nucleus
the electron cloud /energy levels
with the protons
with the neutrons
34
Which subatomic particles are in the nucleus of atoms?
electrons and neutrons
protons and neutrons
protons and electrons
neurons and electrons
35
The atomic mass number is
The mass of the protons plus electrons
The mass of the electrons plus the neutrons
The mass of the protons plus the neutrons
The mass of the neutrons only
36
How many neutrons does P, phosphorus have?
31
16
15
30
37
The photo show an example of
A Gas
Plasma
A Solid
A Liquid
38
Which element family does not like to share, give, or take electrons?
halogens
alkaline earth
noble gases
alkalis
39
A chemical reaction
Forms a new substance
Does not form a new substance
Can be reversed easily
40
The electron arrangement of all electrons in all energy levels of an element..
Isotope
Valence
Ions
Electron configuration
41
Which is NOT an example that a chemical change has happened ?
fizzing bubbles
Odor change
Color change
A phase change in state of matter
42
How are elements named?
for stars
for the hemisphere they are discovered in
for people, places, and Latin or Greek root words
for science terms
43
What are the columns of the elements on the periodic table called?
compounds
sections
families
periods
44
How many elements are naturally occurring in nature?
15
108
50
92
45
The 10 in this square of the periodic table for the element Neon is the ?
Atomic Number
Atomic Mass
Neutron Number
Melting point
46
Sublimation is when a
Gas turns into a liquid
Solid turns into a gas
Gas turns into a solid
Liquid turns into a gas
47
What do the elements of a period have in common?
number of isotopes
Same number of energy levels
number of metalloids
number of valence electrons
48
The number of electrons in the outermost energy level are
Ions
Electron configuration
Valence
Isotopes
49
Elements that have the properties of both metals and nonmetals are called?
molecules
metalloids
transitional elements
compounds
50
Electrically charged atoms are?
ions
neutral
isomers
isotopes
51
What do the elements in a family have in common?
same number of valence electrons
the number of energy levels
the number of isotopes
the number of metalloids
52
How many valence electrons do the Noble gas family have?
1
8
6
3
53
The electromagnetically charged subatomic particles of an atom are the?
protons
neutrons and protons
neutrons and electrons
protons and electrons
54
When an element has different varying numbers of neutrons..
Isotopes
Valence
Ions
Electron configuration
55
The atomic number of an atom is equal to
The valence number
The neutron number
The period number
The proton number
56
Which is the smallest?
A nucleus
A neutron
An electron
A proton
57
An example of a physical reaction would be
A rusting bridge
Bleaching your hair
Frying an egg
Dissolving sand in water
58
When a gas turns into a liquid we call that change?
Melting
Evaporation
Sublimation
Condensation
59
The subatomic particle that carries a negative charge is the?
neutron
proton
bison
electron
60
Element E has an atomic mass of 30 and atomic number of 20, how many neutrons are there?
20
25
10
30
