StephensScience Y10 Electronic Structure Bonding

Question 1

Elements in Group 13:

Accepted Answer

form +3 ions, lose 3 electrons when forming ions

Question 2

How many electrons are in a Na+ ion?

Accepted Answer

10

Question 3

How many electrons fit into each of the first 4 shells?

Accepted Answer

2,8,18,32

Question 4

If I add a proton to an atom, I'll be changing:

Accepted Answer

the atomic number, the element

Question 5

Which subatomic particle is the smallest and carries the least mass?

Accepted Answer

electrons

Question 6

The number of outer shell electrons in an atom can be worked out from:

Accepted Answer

the Group number

Question 7

Which two subatomic particles have the most mass?

Accepted Answer

protons and neutrons

Question 8

Fluorine is most similar to Chlorine in its chemistry because:

Accepted Answer

they are in the same Group

Question 9

The number of electron shells can be worked out from the:

Accepted Answer

Period number

Question 10

Most of the volume of an atomis made of:

Accepted Answer

a cloud of fast-moving e-

Question 11

The element selenium (Se, atomic number 34) has the same number of electron SHELLS as:

Accepted Answer

Arsenic (As)

Question 12

The element selenium (Se, atomic number 34) has the same number of OUTER SHELL electrons as:

Accepted Answer

Oxygen

Question 13

Which of the following CANNOT be the electronic configuration of an element?

Accepted Answer

2. 18. 8

Question 14

The electronic configuration 2.8.6 is which Period?

Accepted Answer

3

Question 15

How many electrons are in an uncharged atom of Copper (Cu)?

Accepted Answer

29

Question 16

The atomic number of an uncharged atom is the same as:

Accepted Answer

number of protons and number of electrons

Question 17

Which element has the symbol P?

Accepted Answer

Phosphorus

Question 18

Looking at elements Oxygen (8), Carbon (6) and Sulfur (16), which statement is true?

Accepted Answer

O and C have the same number of shells of e-, O and S have the same number of outer shell e-

Question 19

The electronic configuration 2.8.6 is which Group?

Accepted Answer

16

Questions 19