Atoms/bonding/organic

What is the name of the alkane with the formula C₃H₈?

The table shows the mass number and percentage of two different atoms of another element.

Calculate the relative atomic mass (Ar) of this element.

Give your answer to one decimal place.

Name the central part of an atom.

Name the positively charged particles in an atom.

Give the mass number of this atom.

Give the symbol of the element containing this atom.

Use the Periodic Table to help you.

Chlorine has two isotopes of mass numbers 35 and 37

The relative percentage of each isotope in a sample of chlorine is

chlorine-35 77.78% chlorine-37 22.22%

Calculate the relative atomic mass of this sample of chlorine.

Give your answer to one decimal place.

State how many colours ink D contains.

Which of the inks is insoluble

• A

• B

• C

• D

State which of the inks tested could be mixed together to make ink D.

• A and B

• A and C

• B and C

• A, B and C