Identify the element in the image using subatomic particles and your periodic table.

A. hydrogen
B. helium
C. lithium
D. beryllium
E. nitrogen

What does x represent in the formula for the compound xcl4?

What is the standard unit of measure for acceleration?

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together