Across
- 3. Negatively charged ions?
- 6. Molecules bond in which atoms share electrons?
- 9. Uncharged or neutral particles?
- 11. How many electrons can hold second shell?
- 12. When two or more atoms combined chemically together it is called?
- 13. The number of ______ is always equal to the number of electrons.
- 15. Atom is the basic building block of all_____?
- 17. Compounds formed by ionic bonding?
- 18. Location of the electrons?
Down
- 1. Outermost shell in the atom?
- 2. Charged particles are called?
- 4. How many electrons in the first shell that is close to nucleus?
- 5. What is the name of chemical symbol Mg?
- 6. First letter of a chemical symbol is always__________?
- 7. Two or more different atoms bind together to form molecule?
- 8. Element that have same # of protons but different # of neutrons?
- 10. Positively charged atom?
- 12. Anything that occupies space and has mass?
- 14. Proton and electrons located in ?
- 16. Chemical shorthand called atomic______?