Across
- 6. Boron has an atomic number of 5 so it has _____ protons in its nucleus
- 7. part of an atom with a neutral (no) charge
- 8. the atomic _____ tells the "weight" of the atom
- 10. element with an atomic number of 1
- 11. place in the atom where the protons and neutrons are
Down
- 1. part of an atom with a negative charge
- 2. one of 118 unique atoms found on the periodic table
- 3. part of an atom with a positive charge
- 4. one of two letter initial of the element
- 5. smallest building block of everything
- 9. the atomic _______ tells how many protons are in the nucleus