Name: ____________________________________
Period: ___
Atoms and Molecules Crossword
Across:
4) Uncharged particle in the nucleus.
8) Molecules are very spaced out and moving at high speed.
9) Molecules stop moving past each other and become strongly
linked.
10) Unusual substance that becomes less dense when it freezes.
14) The smallest thing that is still considered an element.
15) The “rings” around the outside of the atom.
16) Center of the atom.
17) Same as the number of protons in the atom.
20) Water has a value of “1.”
21) What happens to dry ice does at room temperature.
23) Molecules are locked rigidly together.
24) A measure of how fast atoms or molecules are moving in an
object.
25) Charged particle outside of the nucleus.
Down:
1) You can lose this by getting further away from the Earth.
2) Charged particle in the nucleus.
3) Gas to solid. (Hint: you’re adding money to the bank.)
5) 4th state of matter.
6) Upper part of the density equation.
7) The movement of molecules from high concentration to low
concentration.
11) “N” for nitrogen, “O” for oxygen, etc.
12) Happens on your mirror after a shower or on windows on a cold
day.
13) Molecules can move past each other but the overall volume
does not change.
18) Energy added to a solid causes this.
19) Several atoms bonded together.
22) Bonds between molecules break apart and they become free to
move around.