The number of which type of particle determines the identity of an element?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas