Calculate the number of atoms in a 7.91×103 g sample of calcium.

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

Why is nh3 classified as a polar molecule

How have the greenhouse gasses increased from the year 2000 to 2018