Across
- 4. Subatomic particles found inside the nucleus of every atom
- 6. An element that possesses a preponderance of properties in between, or that are a mixture of, those of metals and nonmetals
- 8. A substance with two or more atoms
- 9. Releases energy from its surroundings
- 12. variable that changes as a result of the independent variable manipulation
- 14. 6.022 × 10
- 15. A small particle with a negative charge that is found in all atoms.
- 19. A form of a chemical element in which the atoms have the same number of protons but with a different number of neutrons.
- 20. Composed by a single element or compound
- 23. The process of using electricity to split water into hydrogen and oxygen
- 24. A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
- 25. Fundamental items that can't be easily broken into smaller pieces
Down
- 1. A variable that isn't changed by other variables
- 2. A substance that takes part in and undergoes changes in a reactions
- 3. Opaque, lustrous elements that are good conductors of heat and electricity.
- 5. Process used by plants and other organisms to convert light energy into chemical reaction.
- 7. A process in which sugars are transformed into a new product through chemical reactions
- 10. Russian Chemist and inventor is known for formulating the periodic law
- 11. The same number of each type of atom on both sides of the equation
- 13. Reaction that absorbs energy
- 16. A force that acts from the outside
- 17. A column of elements in the periodic table of the chemical elements.
- 18. A substance that is present at the end of a chemical reaction.
- 21. A row of chemical elements
- 22. a substance made from two or more different elements that have been chemically joined.