Question

Which element has a mass that is 7:30 times that of carbon-12?

Answer 1

Answer:

Strontium

mass of C-12 = 12 units

12× 7.3 =87.6 units = mass of strontium

Answer 2

Given::

An element has a mass that is 7:30 times that of carbon-12.

To find:

The element.

Solution:

To determine the element we have to follow the below steps as follows-

The atomic mass of C is 12 grams.

The element has a mass that is 7:30 times that of carbon-12.

Hence the atomic mass of the element is 12×7.3=87.6 grams.

Thus, the atomic mass of the element is 87.6 grams.

This is the atomic mass of Sr.

Thus, the element is Sr.