A scientist wants to estimate the mass of an atom. What information can be used to do this?

A. The masses of the electrons and neutrons can be added together.
B. The atomic number of the element can be used.
C. The masses of the protons and neutrons can be added together.
D. The column number of the periodic table can be used.

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d