Across
- 4. Composed of 2 or more different nonmetals.
- 6. A negatively charged ion is called an
- 7. A substance that cannot be broken down into simpler substances.
- 10. have a neutral charge.
- 15. The formula CH4 is called
- 18. A compound that contains carbon and hydrogen.
- 19. The chemical symbol for scandium.
- 21. A type of chemical bond involving the transfer of electrons.
- 23. What type of charge do Protons have?
Down
- 1. A solution that is a mixture of more than one substance.
- 2. have a negative charge.
- 3. How many atoms does the prefix "nono" indicate.
- 4. The unit of measurement for the number of atoms or molecules in a substance
- 5. The chemical symbol for Rubidium.
- 8. The process of turning a liquid into a gas.
- 9. The formula for water is
- 11. How many nonmetals are binary molecular compounds are composed of
- 12. How many diatomic elements are there?
- 13. A substance that speeds up a chemical reaction without being used up.
- 14. A substance that releases hydrogen ions when dissolved in water.
- 16. Composed of ions, usually metal and nonmetal.
- 17. A positively charged ion is called a
- 20. What is it called when an ion has more than one atom?
- 22. The formula NH3 is called