C3. Atomic structure & The Periodic Table

Question 1

What is the Atomic Number?

Answer 1

Number of Protons in an atom

Question 2

What is the Atomic Mass? (or relative mass)

Answer 2

Number of Protons + number of Neutrons
found in the Nucleus

Question 3

Define Atoms

Answer 3

Structure of an Element
Makes up everything

Question 4

Atoms are made up of

Answer 4

Sub-atomic particles

Protons (+)
Neutrons (n)
Electrons (-)

Question 5

What is the relative mass of a Proton?

Answer 5

1

Question 6

What is the relative mass of a Neutron?

Answer 6

1

Question 7

What is the relative mass of an Electron

Answer 7

1/2000

Question 8

What is the relative charge of an Electron?

Answer 8

-1

Electrons have a charge of -1.6

Question 9

What is the relative charge of an Proton?

Answer 9

1+

Charge of +1.6

Question 10

What is the relative charge of a Neutron?

Answer 10

Neutrons carry no charge (0)

Question 11

The Periodic table is ordered in an arrangement of ___ known elements?

Answer 11

118

Question 12

Rows of the periodic table are called

Answer 12

Periods

Question 13

columns of the Periodic table are called

Answer 13

Groups

Question 14

All elements in a column (group) have the same number of…

Answer 14

Electrons

Question 15

Who was the first Chemist to devise a Periodic table?

Answer 15

John Newlands

How table was ordered by weight of element

Question 16

Who realised there may be undiscovered elements?

Answer 16

Dimitri Mendeleev
Added gaps to Newlands table for undiscovered elements
predicted properties and masses of undiscovered elements

Question 17

Atoms are ______

Answer 17

Neutral

Question 18

Define an Ion

Answer 18

Positively or negatively charged atom from chemical reaction (bonding)

Question 19

Define a Molecule

Answer 19

Group of atoms joined together

Question 20

Define Isotop

Answer 20

An Atom of the same element with a different number of Neutrons

Question 21

A Nuclide is a type of ______

Answer 21

Isotop
Refers to a specific Nucleus that contains a certain number of Protons and Neutrons

Question 22

Electrons have a fixed position in Atoms called ______ or ______ ______

Answer 22

Shells or Energy Levels

Question 23

The closer the shell is to the nucleus, the _____ its energy level

Answer 23

lower