The atomic mass is determined mainly by the:

All of the organisms and nonliving components of a particular environment are referred to as a(n) ______.

Insulin is a protein hormone produced by specialized cells in the pancreas. It is secreted from specialized cells in the pancreas. Based on this information, which path does insulin take out of the cell? Outline the likely pathway through organelles that insulin takes to exit these cells. Start with DNA in the nucleus and end with the hormone being released from the cell. Your story should include words and a labeled diagram, the names of the cell organelles involved in creating the hormone and a brief description about what those organelles do.  

Electrons in different energy levels carry different charges.

What type of bond is present in NBr3?

How many neutrons are there in a silver atom? Silver has an atomic number of 47 and a mass number of 108.

A covalent bond forms between:

The electronic configuration for the sulfide ion, S2-, is:

An orbital is a(an):

Which element has an electronic configuration ending with 4p4?