Post on 18-Dec-2021
Atoms, elements, and the periodic table
Quiz review
The charge of the neutron of an atom is
1. Positive
2. Negative
3. Not charged
4. Changed by the type of element it is in
Response Grid
Which of the following is NOT true about the electrons in an element of helium?
There
are 2
ele
ctro
ns wh...
They a
re lo
cate
d in th
e...
They m
ove extrem
ely fa
s...
They are
the n
egative p
a..
0% 0%0%0%
1. There are 2 electrons which is the same as the atomic number 2.
2. They are located in the nucleus.
3. They move extremely fast outside the nucleus.
4. They are the negative part of the atom.
Response Grid
Which part of the atom results in the nucleus having a positive charge?
Neutro
n
Elect
ron
Pro
ton
No p
arts
0% 0%0%0%
1. Neutron
2. Electron
3. Proton
4. No parts
Response Grid
How many electrons does this element have?
36 84120 48
0% 0%0%0%
36
Krypton
Kr
84
1. 36
2. 84
3. 120
4. 48
Response Grid
How many protons does this element have?
36 84120 48
0% 0%0%0%
36
Krypton
Kr 84
1. 36
2. 84
3. 120
4. 48
Response Grid
How many neutrons does the element have?
36
Krypton
Kr
84
36 84 48120
0% 0%0%0%
1. 36
2. 84
3. 48
4. 120
Response Grid
What does the number 36 tell you about an atom of Krypton?
the n
umber o
f pro
tons .
.
2. t
he num
ber of v
alenc..
.
3. t
he num
ber of n
eutro..
4. t
he mass
of t
he atom
...
0% 0%0%0%
36
Krypton
Kr
84
1. the number of protons OR electrons in the element
2. the number of valence electrons in the element
3. the number of neutrons in the element
4. the mass of the atom of an element
Response Grid
Which element does this Bohr atomic model represent?
Carb
on
Bery
llium
Oxyg
en
Heliu
m
0% 0%0%0%
1. Carbon
2. Beryllium
3. Oxygen
4. Helium
Response Grid
How many valence electrons does this model have?
2 8 6 16
0% 0%0%0%
1. 2
2. 8
3. 6
4. 16
Response Grid
What element is in group 6 period 3?
Sulfu
r
Arg
on
Oxyg
en
silic
on
0% 0%0%0%
1. Sulfur
2. Argon
3. Oxygen
4. silicon
Response Grid
Which is an example of an element?
1. H₂O
2. Fe
3. NaCl
4. salt
Response Grid
All of the following are examples of compounds EXCEPT
1. H₂O
2. Fe
3. NaCl
4. CO
Response Grid
Which is an example of a mixture?
Oxyg
en
Kool-A
id
Wate
r (H2O)
gold
0% 0%0%0%
1. Oxygen
2. Kool-Aid
3. Water (H2O)
4. gold
Response Grid
How many atoms of hydrogen are in one molecule of sulfuric acid, H₂SO₄ ?
4 2 7 6
0% 0%0%0%
1. 4 2. 2 3. 7 4. 6
Response Grid
Countdown
10
How many atoms of hydrogen are in one molecule of sulfuric acid, H₂SO₄?
4 2 7 6
0% 0%0%0%
1. 4 2. 2 3. 7 4. 6
Response Grid
Countdown
10
How would you write the chemical formula of this compound?
1. H₂O
2. H₂O₂
3. HO
4. HOOH
Response Grid
50 grams of hydrogen is combined with 30 grams of oxygen to make H2O. What is the total
mass H2O?
80 gr
ams
20 gr
ams
30 gr
ams
130 gr
ams
0% 0%0%0%
1. 80 grams
2. 20 grams
3. 30 grams
4. 130 grams
Response Grid
Milk is an example of a ________________.
Hete
roge
neous mixt
ure
Hom
ogeneous mix
ture
Com
pound
ele
ment
0% 0%0%0%
1. Heterogeneous mixture
2. Homogeneous mixture
3. Compound
4. element
Response Grid
You have a beaker containing salt water. What property can be used to separate the salt from the water?
Boili
ng poin
t
Densit
y
Duct
ility
Melti
ng poin
t
0% 0%0%0%
1. Boiling point
2. Density
3. Ductility
4. Melting point
Response Grid
What property of iron could be used to separate a mixture of iron filings and sand?
Magn
etism
Solid
at r
oom te
mpera
ture
Shin
y lust
er
malle
ability
0% 0%0%0%
1. Magnetism
2. Solid at room temperature
3. Shiny luster
4. malleability
Response Grid
Which is NOT true about heterogeneous mixtures?
Pizz
a is a
n exa
mple
.
Parti
cles a
re u
sually
larg
e.
It lo
oks diff
erent t
hrough...
It ca
nnot be se
parate
d.
0% 0%0%0%
1. Pizza is an example. 2. Particles are usually large. 3. It looks different through it. 4. It cannot be separated.
Response Grid
Salt dissolves in water. Which is the solvent?
Wate
r Sa
lt
Neith
er
Both
0% 0%0%0%
1. Water 2. Salt 3. Neither 4. Both
Response Grid
The mass of an atom is mostly found in its ______.
Nucle
us
Elect
ron cl
oud
Ato
mic
number
cells
0% 0%0%0%
1. Nucleus
2. Electron cloud
3. Atomic number
4. cells
Response Grid
What parts of an atom are located in the nucleus?
No p
arts are
loca
ted th
ere
Elect
rons O
NLY
Neutro
ns and e
lect
rons
Neutro
ns and p
roto
ns
0% 0%0%0%
1. No parts are located there
2. Electrons ONLY
3. Neutrons and electrons
4. Neutrons and protons
Response Grid
What does the number 84 tell you about an atom of krypton?
Num
ber of n
eutrons i
n a...
Tota
l ele
ctro
ns in an
at..
Mass
of o
ne ato
m o
f tha...
Avera
ge n
umber a
tom
s o...
0% 0%0%0%
36
Krypton
Kr
84
1. Number of neutrons in an atom of that element
2. Total electrons in an atom of that element
3. Mass of one atom of that element
4. Average number atoms of that element
Response Grid
What is the element symbol?
Kr
Kry
pton
Ato
mic
number
Num
ber of n
eutrons
0% 0%0%0%
36
Krypton Kr
84
1. Kr
2. Krypton
3. Atomic number
4. Number of neutrons
Response Grid
According to the above model , how many valence electrons does this atom have?
6 4 2 8
0% 0%0%0%
1. 6
2. 4
3. 2
4. 8
Response Grid
Which particle of an atom is responsible for its positively charged nucleus?
Neutro
n
Pro
ton
Elect
ron
Vacu
ole
0% 0%0%0%
1. Neutron
2. Proton
3. Electron
4. Vacuole Response Grid
Bob made a mixture of sand, sugar, and water. What is NOT TRUE about this mixture?
The sa
nd can b
e separa
t..
The su
gar d
issolv
es in w
...
The w
ater c
an be se
para...
This
mixt
ure ca
nnot be ..
.
0% 0%0%0%
1. The sand can be separated from the mixture by pouring the mixture through a filter.
2. The sugar dissolves in water.
3. The water can be separated from the sugar through evaporation.
4. This mixture cannot be separated.
Response Grid
According to the chemical formula H₂SO₄, all of the following chemical elements can be found in
a molecule of sulfuric acid EXCEPT
silic
on
Hyd
rogen
Oxyg
en
sulfu
r
0% 0%0%0%
1. silicon
2. Hydrogen
3. Oxygen
4. sulfur
Response Grid
How many atoms of hydrogen are in one molecule of sulfuric acid, H₂SO₄?
4 2 7 6
0% 0%0%0%
1. 4 2. 2 3. 7 4. 6
Response Grid
Countdown
10
Which of these is not an example of matter?
Wate
r
Sunlig
ht A
ir
wood
0% 0%0%0%
1. Water
2. Sunlight
3. Air
4. wood
Response Grid
Countdown
10
The chemical formula for sulfuric acid is H₂SO₄. What elements make up sulfuric acid?
Hyd
rogen a
nd sodiu
m
Hyd
rogen a
nd sulfu
r
Hyd
rogen, s
ulfur,
and ..
.
Hyd
rogen a
nd silic
on
0% 0%0%0%
1. Hydrogen and sodium 2. Hydrogen and sulfur 3. Hydrogen, sulfur, and
oxygen 4. Hydrogen and silicon
Response Grid
Countdown
10
Which is the positive part of the nucleus?
ele
ctro
n
pro
ton
neutro
n
None o
f these
are
posit
ive
0% 0%0%0%
1. electron
2. proton
3. neutron
4. None of these are positive
Response Grid
Countdown
10
According to the periodic table, which family contains the most elements?
Meta
lloid
Meta
ls
Nonm
etal
They are
all t
he sam
e a...
0% 0%0%0%
1. Metalloid
2. Metals
3. Nonmetal
4. They are all the same amount
Response Grid