Express the answers to the following calculations in scientific notation: a. 145.75 / (2.3x10-1
) c. (7.0 x10-3
) - (8.0x10-4
)
b. 79,500/ (2.5x102
) d. (1.0x104
) x (9.9x106
)

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

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

Amixture with the same composition throughout is!