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EMPA 1 Crossword
Down
:
1) An educated guess
2) Represents the number of Protons and Neutrons
3) Is formed when one atom gives up an electron to another.
4) An organized grouping of elements
6) The quantity of matter an object has
7) The factor which is measured in the experiment
10) Consist of atoms of two or more elements that are joined by chemical bonds in a fixed proportion
13) Organized the Periodic Table
17) Atoms of the same element that have a different number of neutrons
18) Move around the nucleus in orbitals
Across
:
5) Made of a single king of atom and cannot be broken down by chemical means into simpler substances
8) The process that scientists use in experimentation
9) Science related to the chemical processes going on inside a living organism.
11) These prevent eye injuries in lab
12) Represents the number of protons a atom has
14) Formed when two atoms share electrons
15) Anything that occupies space and has mass
16) If you get chemicals in your eyes during an experiment you should go here
19) The one factor that is changed by the person doing the experiment
20) All the factors that stay the same in an experiment
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