Bonding Continuous Assessment Test

Which of the following elements would not normally form a bond with oxygen?

• sodium

• neon

• silicon

• carbon

Which group of elements will bond to each other via ionic bonds?

• oxygen and lithium

• fluorine and chlorine

• phosphorous and oxygen

• chlorine and carbon

Which compound would be expected to be a hard solid at room temperature?

• MgO

• C₂H₄

• SiF₄

• SO₃

Which of the following electronic configurations are those of an element which would readily form bonds?

• 2

• 2. 8. 8

• 2. 8

• 2. 8. 1

What is the formula of the compound formed between Potassium and nitrogen?

• KN

• K₃N₂

• K₃N

• KN₃

What is the formula of the compound formed between Rubidium (2.8.18.8.1) and Oxygen (2.8.6)?

• RbO

• Rb₂O₂

• Rb₂O

• RbO₂

7. In ionic bonding

• Non-metals transfer electrons to metals to form positive ions and negative ions respectively.

• Metals transfer electrons to non-metals to form negative and positive ions respectively.

• Metals transfer electrons to non-metals to form positive ions and negative ions respectively.

• Non-metals transfer electrons to metals to form negative ions and positive ions respectively.

The name of the compound with formula, Na₂S

• sodium sulphate

• sodium disulphide

• disodium sulphide

• sodium sulphide

The electronic configuration of the following elements are as shown (The letters are not actual symbols of the elements).

Q 2 R 2. 8. 6

S 2. 2 T 2. 8. 2

Which element/s would have a valency of 2?

• S and T only

• R,S and T only

• Q, R, S and T

• Q, S and T only

Use part of the Periodic Table shown to answer the question. Except for He the letters are not the actual symbol of the element.

For the compound formed between E and J predict the type of bonding and the formula.

• Ionic E₃J₂

• Ionic E₂J₃

• Covalent E₃J₂

• Covalent E₃J₂