Question

Using the table above, find the average atomic mass of the element. Then, using the periodic table, determine which element is shown.

Answer 1

Average atomic mass:-

• 34.969+36.966/2
• 71.935/2
• 35.967u

The element must be chlorine i e Cl

Answer 2

Chlorine

Step-by-step explanation:

• The abundance of chlorine-35 is 75% and the abundance of chlorine-37 is 25%.
• Chlorine for example has two naturally occurring isotopes: Chlorine-35 and chlorine-37.
• Chlorine's atomic mass is 35.453 u.