What is nearly all of an atom's mass made up of?

protons and neutrons

the cloud of protons

neutrons and electrons

the cloud of electrons

Abbrevation of mass in the si unit

Cl2 (g) + 2NaBr (aq) 2NaCl (aq) + Br2 (l) The reaction given above is a single replacement reaction because: A. one of the reactants is a gas B. none of the reactants are solids C. chlorine replaces bromine D. the reaction proceeds spontaneously

Achieving a balanced diet is best done by a. eating nothing but fruits. b. getting the right number of Calories each day. c. eating at least one item from each food group daily. d. getting 100% of your calcium requirements each day.

Molecular bonding cannot occur without ... electrons, sunlight, protons, or neutrons?

If 54.9 L of an ideal gas is cooled from 64 degrees C to 7 degrees C, what will the volume of the gas become?

Give one part of daltons atomic theory that is no longer excepted and explain why

Which factors would negatively impact the bodies digestive system

What's a predator? Are predators animals?

Do you think your model accurately represents an alcohol thermometer? How is it like a manufactured thermometer? How is it different?

Democritus contributed to our understanding of the atom in which of the following ways? 1. He determined the mass of the electron. 2. He determined the charge-to-mass ratio for the electron. 3.