Use the following words to fill in the blanks.

Question

Atomic number
Ionic bond
Atomic mass
Law of conservation of mass
Endothermic reaction
Electron
Covalent bond
Product
Isotope
Proton
Carbon cycle
Energy level, orbital, or shell
Atomic model
Atomic theory

1. Dalton's idea that atoms cannot be divided into smaller parts was disproved by the discovery of the _______. (electrons?)

2.The description of the structure of the atom is called the _______. (atomic model)

3. In a water molecule, two atoms of hydrogen and one atom of oxygen share electrons. A _____ bond is found in a water molecule. (convalent)

4. Sodium chloride is formed when the metal sodium bonds to the nonmetal chlorine. The atoms are held together by a(n) ______. (ionic bond)

5. One way the modern atomic model differs from Thompson's atomic model is that electrons are no longer scattered throughout an atom's positive matter like chocolate chips in cookie dough. Instead, each electron is outside of the nucleus occupying a specific ____. (energy level, orbital, or shell)

6. If new information about the behavior of atoms is discovered and verified, then revisions will need to be made to the current _____. (atomic theory)

7. The number of protons in the nucleus of an atom is its _____. (atomic number)

Answer 1

I agree with all of your answers. For #5 I would stick with energy level.