Across
- 2. Part of the nucleus of an atom and has a positive charge
- 5. An element intermediate in properties between the typical metals and non metals
- 6. a reaction that occurs in which a layer of metal is bonded to the surface of another substance; usually other metal
- 9. Part of the nucleus of all atoms except hydrogen and has no charge
- 10. the mass of an atom usually known as atomic weight
- 11. states that the total number of atoms stay the same
- 14. reaction occurs when energy is absorbed making the products of the reaction cooler
- 17. reaction occurs when energy is released in the form of heat
- 19. number of protons in the nucleus of an atom
- 20. element letter for its name
- 21. substances present in a chemical reaction that are consumed during the reaction
- 22. any group of rare gases with great stability
- 24. the rows going across on the periodic table
Down
- 1. the columns going down on the periodic table
- 2. something that is the result of the process
- 3. a combination of atoms bonded together
- 4. formulated periodic law
- 7. substance that is usually shiny, conducts heat and electricity, and can be melted
- 8. outermost number of electrons in the outer orbital
- 12. a chemical element that lacks characteristics of a metal
- 13. Part of atoms with a negative charge
- 15. Central core of an atom has protons and neutrons
- 16. regions of space outside the nucleus of an atom where an electron may exist
- 18. to form something by combining two separate things
- 19. The smallest particle of a substance that can exist by itself
- 23. a basic substance that is made of atoms