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