Across
- 2. if an atom has five protons, then the identity of the atom is the element ________
- 4. If a hydrogen atom has one neutron, how many "u" does the atom have?
- 5. mass is the amount of "______" in an object
- 6. In order to find the amount of "u" that an atom has, you _____ up the number of protons and number of electrons
- 7. a pure substance that can't be chemically broken into smaller parts
- 12. if an atom has three protons, then the identity of the atom is the element ________
- 14. In order for an atom to be neutral, it must have an ______ amount of protons and electrons
- 16. atoms that have the same amount of protons but different amounts of neutrons
- 19. In the ______ foil experiment, particles were shot at a strip of foil
- 20. particles that are smaller than an atom are called ___atomic particles
- 21. How many neutrons does Oxygen-17 have?
- 22. the gold foil experiment showed that most of an atom is composed of ______ space
- 23. your sister's name
- 24. How many neutrons does Lithium-7 have?
- 26. How many neutrons does Carbon-12 have?
- 27. if an atom has eleven protons, then the identity of the atom is the element ________
- 28. How many neutrons does Oxygen-18 have?
Down
- 1. a proton has a charge of ______ one
- 3. when it comes to electrical charge, opposites ______
- 8. How many protons does an oxygen atom have?
- 9. protons and neutrons are found in the _______ of an atom
- 10. the identity of an atom is determined by its number of ______
- 11. Your birthday is in the month of _______ (I think)
- 13. the gold foil experiment showed that most of an atom's _____ is in the nucleus
- 15. the smallest unit of an element that can still be identified as that element
- 17. In order for a lithium atom to be neutral, it must have _____ electrons
- 18. subatomic particles that are NOT found in the nucleus
- 21. an electron as a charge of ______ one
- 25. Next year, you will be a _______ in high school
- 29. Does a neutron have a charge?