Chemistry #1

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?

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?