Atoms & Periodic Table

Question 1

Atoms are made up of what three parts

Answer 1

Electrons, Protons and Neutrons

Question 2

Electrons have a ? Charge

Answer 2

Electrons have a negative charge

Question 3

The farther away the electron is from the nucleus the ____

Answer 3

Less energy is held

Question 4

What are valence electrons ?

Answer 4

Valence electrons are electrons on the last shell of the atom.

Question 5

Valence electrons can be ?

Answer 5

Be shared, or moved when combined with other atoms, or during when starting electricity

Question 6

What charge does a neutron have?

Answer 6

None, a Neutron is neutral

Question 7

Where can u find the neutrons ?

Answer 7

The neutrons are found in the nucleus

Question 8

Neutrons make the atom ___ or else it would be _____

Answer 8

Neutrons make the atoms stable or else it would be radioactive

Question 9

What charge does a proton have ?

Answer 9

A proton has a positive charge

Question 10

Where are the protons found ?

Answer 10

Protons are found in the nucleus

Question 11

Where can u find the electrons?

Answer 11

You find the electrons gravitating around the nucleus

Question 12

What are protons and neutrons held by ?

Answer 12

Protons and neutrons are held by nuclear energy

Question 13

What is a atomic mass ?

Answer 13

The atomic mass is the sum of protons and neutrons.

Extra points : they are measured in AMU - atomic mass units

Question 14

How do u find the number of protons in an element?

Answer 14

To find the number of protons an element has you look at the atomic number.

Question 15

How do u find the number of electrons a element has?

Answer 15

The number of electrons are the same number as protons. So look at the atomic number .

Question 16

How do u find the number of neutrons?

Answer 16

To find the number of neutrons a element has, subtract the atomic number from the atomic mass.

Atomic number - Atomic mass = Neutrons

Question 17

How many electrons can each shell have ?

Answer 17

Each shell can only hold 8 electrons. Except for the first shell, the first shell can only hold 2 electrons.

Question 18

Do electrons contribute to the atomic mass of a element?

Answer 18

No, they don’t. Electrons are very light.

Question 19

What is the periodic table ?

Answer 19

The periodic table is a table in that is arranged by increasing order of mass and atomic number.

Question 20

The periodic table is classified into three groups, what are they ?

Answer 20

They are Metals, Nonmetals, and metalloids

Question 21

Where are the metals found ?

Answer 21

Metals are found to the left of the staircase

Question 22

Metals are ?? ( 5 answers )

Answer 22

• Good conductors of electricity/Heat
• malleable( shaped into a sheet )
• ductile( shaped into a wire )
• shiny
• solid are room temperature( except mercury )

Question 23

Metals react with ???

Answer 23

Metals react with acids

Question 24

What are metalloids ?

Answer 24

Metalloids have properties of both metals and nonmetals

Question 25

Metalloids are ?? ( 1 answer )

Answer 25

-Semi conducers of electricity/heat

Question 26

Where are metalloids found ?

Answer 26

Metalloids are found along the staircase

Question 27

What are nonmetals ?

Answer 27

Nonmetals are not metals

Question 28

Where are Nonmetals found ?

Answer 28

Nonmetals are found to the right of the staircase

Question 29

Nonmetals are ?? ( 3 answers)

Answer 29

- liquid at room temperature - poor conductors of heat/electricity - when solid can be reduced to a power

Question 30

A period (row) indicates what ?

Answer 30

It indicates the number of shells a atoms has

Question 31

A column (chemical group) indicates what?

Answer 31

It indicates the number of valence electrons an atom has

Question 32

Alkali metals are found where ? And how many valence electrons do they have ?

Answer 32

Alkali metals are found in the first column. They have 1 valence electron

Question 33

Where are alkali earth metals found? How many valence electrons do they have ?

Answer 33

Alkali earth metals are found in the second column. They also have 2 valence electrons.

Question 34

Alkali metals are ?? ( 4 answers )

Answer 34

- soft and very malleable - stored in oil (they react to moisture in air) - very reactive - too unstable to exist alone

Question 35

Alkali metals combine to form ___

Answer 35

Alkali metals combine to form molecules.

Question 36

Alkali earth metals are ?? ( 3 answers )

Answer 36

- soft - reactive - can be exposed to air

Question 37

Alkali earth metals combine to form ____

Answer 37

Alkali earth metals combine to form compounds

Question 38

Where are halogens found? How many valence electrons do they have ?

Answer 38

Halogens are found in the 7th column. They have 7 valence electrons.

Question 39

Halogens are ?? ( 3 answers )

Answer 39

- nonmetals - highly reactive - disinfectants

Question 40

Halogens combine to form ___

Answer 40

Halogens combine to form compounds

Question 41

Where are noble gases ( inert ) found? How many valence electrons do they have ?

Answer 41

Noble gases are found in the last column. They have 8 valence electrons.

Question 42

Noble gases are ?? ( 2 answers )

Answer 42

- unreactive | - exist alone

Question 43

What is a isotope? (EST)

Answer 43

An isotope is a element with the same number of protons as another atom of the same element, but with a different number of neutrons.