(1) Calculator A carbon atom has a relative atomic mass of 13.2 60% of the carbon atom has a mass number of 12.8, whilst the remaining 40% has a mass number which is not known. Calculate the mass number of the carbon isotope which is 40% of the Corbon 132 atom. Give your answer to 2 decimal places if needed

Question

Answer 1

The mass number of the carbon isotope contributing the remaining

of the relative atomic mass for carbon-13.2 is 13.8.

Answer 2

## Step1: Calculate mass of

component ### We do this as:

. ## Step 2: Subtract the mass of the

compnent from the element's total mass ### This obtained mass corresponds to the section of

## Step 3: Divide this obtained mass by 0.4 to find the mass number of the unknown element. ### We divide by 0.4 because only

of this relative mass is relevant to our calculations.# Using this overall approach, lets calculate:# Step 1: Calculate mass of

component###

# Step 2: Subtract the mass of the

component from the element's total mass###

# Step 3: Divide this obtained mass by 0.4 to find the mass number of the unknown element###

Question