(Chemistry) Families of Periodic Table and Bohr Diagrams

Question 1

What are the 3 large groups of the periodic table?

Answer 1

Metals
Non-metals
Metalloids (Semi-metal)

Question 2

What are the horizontal rows on the periodic table called?

Answer 2

Periods or series.

Question 3

Elements in the same period have the same __________

Answer 3

number of energy levels/electron shells.

Question 4

What are vertical columns in the periodic table called?

Answer 4

Groups or families.

Question 5

Group 1 is…

Answer 5

Alkali Metals

Question 6

The common physical properties of group 1 are…

Answer 6

-Solids
-Shiny, silvery colour
-Soft metals

Question 7

The common chemical properties of group 1 are…

Answer 7

-Extremely reactive
-Reacts with water to produce hydrogen gas
-Found in nature only as compounds.
- + ion forms when one electron is lost.

Question 8

Elements found in group 1 are… (Hint: there are 6)

Answer 8

Lithium (Li)
Sodium (Na)
Potassium (K)
Rubidium (Rb)
Cesium (Cs)
Francium (Fr)

Question 9

Group 2 is…

Answer 9

Alkaline Earth Metals

Question 10

The common physical properties of group 2 are…

Answer 10

-Solids
-Metals
-Higher density than group 1 (Alkali Metals)

Question 11

The common chemical properties of group 2 are…

Answer 11

-Very reactive
-Found in nature only in compounds
- +2 ions form when 2 electrons are lost.

Question 12

Elements found in group 2 are.. (Hint: there are 6)

Answer 12

Beryllium (Be)
Magnesium (Mg)
Calcium (Ca)
Strontium (Sr)
Barium (Ba)
Radium (Ra)

Question 13

Groups 7 is..

Answer 13

Halogens

Question 14

The common physical properties of group 7 are..

Answer 14

-Non metals

Question 15

The common chemical properties of group 7 are..

Answer 15

-Extremely reactive
-Very corrosive
-Found in nature as compounds only
-Gaining 1 electron results in -1 ion forming

Question 16

Elements found in group 7 are.. (Hint: there are 5)

Answer 16

Fluorine
Chlorine
Bromine
Iodine
Astatine

Question 17

Groups 8 is..

Answer 17

Noble gases

Question 18

The common physical properties of group 8 are..

Answer 18

-Non-metals
-Gases at room temperature
-Odourless
-Colourless
-Tasteless
-Stable electron structure

Question 19

The common chemical properties of group 8 are..

Answer 19

-Very stable
-Unreactive because of full outer shell electrons
-Almost never combine with other chemicals
-Do not gain/lose electrons

Question 20

Elements in group 8 are.. (Hint: there are 6)

Answer 20

-Helium (He)
-Argon (Ar)
-Neon (Ne)
-Kyrpton (Kr)
-Xenon (Xe)

Question 21

What are some other groups?

Answer 21

-Transition metals
-Lanthanides
-Actinides

Question 22

How many elements are naturally occurring?

Answer 22

1-92

Question 23

How many elements are man made?

Answer 23

93-102

Question 24

Which element is a misfit?

Answer 24

Hydrogen.

Question 25

How does each element in group 7 (Halogens) look?

Answer 25

Fluorine - Yellow gas Chlorine - Yellow-green gas Bromine - Red-brown liquid Iodine - Violet/black solid Astatine - Radioactive

Question 26

Why do we place one electron at each spot on a Lewis Dot Diagram?

Answer 26

Electrons have negative charges, which means they repel. We have to place one electron at each spot before they pair up.

Question 27

How do you get neutrons?

Answer 27

Neutrons is = Mass number - Atomic number Protons are = the same as the atomic number.

Question 28

What is a BR diagram?

Answer 28

Bohr diagrams show electrons orbiting the nucleus of an atom somewhat like planets orbit around the sun.

Question 29

What is a Lewis Dot diagram?

Answer 29

a representation of the valence electrons of an atom.

Question 30

What is the full name of the BR diagram?

Answer 30

Bohr-Rutherford diagram.

Question 31

What is the maximum capacity for each shell in the BR diagram? (four shells).

Answer 31

First shell: 2 Second shell: 8 Third shell: 18 Fourth shell: 32

Question 32

What is an atomic nucleus?

Answer 32

A nucleus is the dense central core of an atom that contains protons and neutrons.

Question 33

The number of __ are equal to the number of __.

Answer 33

The number of protons are equal to the number of electrons.