Chemistry: Periodic Table

Question 1

Name the elements with the following atomic numbers

A) 22
B) 80
C) 13

Answer 1

Titanium, mercury, aluminum

Question 2

The atomic number tells us how many ——- an element contains in ————————-

Answer 2

Protons, nucleus of an atom.

Question 3

Name the subatomic particles located in the nucleus of an atom.

Answer 3

a) Protons

b) Neutrons

Question 4

How many protons do the following elements contain?

A) Oxygen
B) Francium
C) Helium

Answer 4

8, 87, 2

Question 5

How many neutrons are in the nucleus of the following elements?

A)platinum
B)vanadium
C)cesium

Answer 5

117, 28, 78

Question 6

A neutral atom will have the same number of ——- as ———.

Answer 6

Protons as electrons

Question 7

How to remember neutral atom has same number of blank as blank?

Answer 7

NEutrons. E comes second. So Protons as electrons. So PE

Question 8

How many electrons will a neutral atom of the elements listed below contain?
Fluorine:
Sulfur:
Helium:

Answer 8

9,16,2

Question 9

Define valence electron

Answer 9

An electron in one of the outer shells surrounding the atom.

Question 10

How do u know how many valence electrons there are for an atom, by looking at the periodic table.

Answer 10

It is determined by group/ family number…. It goes in order by 1 2 then skips to the boron family where it is three, four, five, six, seven, and eight.

Question 11

How do you know the number of valence shells by looking at the periodic table?

Answer 11

It is determined by periodic number

Question 12

Elements have the same number of valence electrons have similar ………

Answer 12

Chemical and physical properties

Question 13

When do elements have same chemical and physical properties?

Answer 13

When they are located in the same group/ family.

Question 14

All atoms strive to have —— valence electrons.

Answer 14

Eight

Question 15

What is the name for having ——– # of electrons?

Answer 15

Octet

Question 16

Having the octet electrons make atoms ——.

Answer 16

Stable

Question 17

Atoms will —-, —-, or —– electrons to become ——.

Answer 17

Share, lose, or gain electrons to become stable.

Question 18

Which family fails to react because their outer energy level is full.

Answer 18

Noble gases family. The last

Question 19

A physical property….

Answer 19

Can be observed without changing the substance into something else.

Question 20

3 examples of physical property.

Answer 20

color, smell, freezing point, boiling point, melting point

Question 21

Evidence of physical property.

Answer 21

A change in...... 
State of matter (solid, liquid, gas)
Size
Mass
Volume.                     SOMe (LiGS) are MaSiVo...

Question 22

A chemical change…

Answer 22

Is when new kinds of matter are formed, observed when a substance interacts with another.

Question 23

Examples of chemical property

Answer 23

Flammability, reactivity