Section 1 : Atomic structure - Electronic Structure

Question 1

Which two atomic particles are found in the nucleus?

Answer 1

Neutrons and Protons

Question 2

The sum of which two atomic particles dictates the relative atomic mass of an element?

Answer 2

Neutrons and Protons

Question 3

In atoms which two atomic particles are in an equal ratio to one another to give the atom its neutral charge?

Answer 3

Electrons and Protons

Question 4

What charge does proton have?

Answer 4

+1

Question 5

What charge does a neutrons have?

Answer 5

0

Question 6

What charge does a electron have ?

Answer 6

-1

Question 7

Where is the first energy level located in relation to the nucleus?

Answer 7

The first energy level is located closest to the nucleus.

Question 8

Each energy level is split into sub levels , what are the names of these sub levels?

Answer 8

The S sub-level
The P sub-level
The D sub-level
The F sub-level

Question 9

What does each sub level have?

Answer 9

Each sub level has orbitals , depending on which sub-level it is ( S, P, D or F) it will have different number of orbitals.

Question 10

How many orbitals does the S sub-level have ?

Answer 10

1

Question 11

How many orbitals does the P sub-level have ?

Answer 11

3

Question 12

How many orbitals does the D sub-level have?

Answer 12

5

Question 13

How many orbitals does the F sub level have?

Answer 13

7

Question 14

How many electrons can each orbital contain?

Answer 14

2

Question 15

How many electrons can the S sub shell hold?

Answer 15

2

Question 16

How many electrons can the P sub shell hold?

Answer 16

6

Question 17

How many electrons can the D sub shell hold?

Answer 17

10

Question 18

How many electrons can the F sub shell hold?

Answer 18

14

Question 19

What is meant by the bus seating rule?

Answer 19

When electrons fill orbitals they try to get 1 electron in each orbital before they start doubling up.

Question 20

What is atomic radius?

Answer 20

The atomic radius is the distance from the nucleus to the outermost shell of electrons.

Atomic radius increases down a group but decreases across a group.

Question 21

What is nuclear charge?

Answer 21

The nuclear charge is decided by the number of protons in the nucleus . Nuclear charge increases both down and across a group.

Question 22

What is shielding?

Answer 22

Shielding is the number of electron shells an atom has, shielding remains constant with progression across a period but increases with progression down a group.