Across
- 2. How many electrons does tin have?
- 4. Use your periodic table. How many protons does Calcium have?
- 6. an element is a substance made up of ____ kind of atom.
- 7. _______symbol distinguishes elements from other elements on the periodic table.
- 8. how many neutrons does florine have?
Down
- 1. a chemical ___________ is an abbreviation of the chemical name.
- 3. the first letter in a chemical symbol is always a capital letter. if there is a 2nd letter, it is always ________ case
- 5. the atomic __________ distinguishes elements from other elements on the periodic table.