1. The three basic components of an atom are:
An element is determined by the number of:
3. Name a step in the scientific method.
4. The nucleus of an atom consists of:
5. A single proton has what electrical charge?
6. What is the symbol for copper?
7. Which subatomic particles have approximately the same size and mass as
each other?
8. What is the chemical combination of two or more elements?
9. Which two particles would be attracted to each other?
10. The atomic number of an atom is:
11. What kind of change is stapling a couple of papers together?
12. Changing the number of neutrons of an atom makes it (a term):
13. When you change the number of electrons on an atom, you produce a
different _________
14. According to atomic theory, electrons are usually found:
15. A beryllium atom has 4 protons, 5 neutrons, and 4 electrons. What is the
mass number of this atom?
16. Which shell can be occupied by 10 electrons?
17. What is the charge of an ion that has 20 protons and 18 electrons?
18. Which variable is on the x-axis of a graph?
19. What is the charge of mercury that has 80 electrons? 0
20. What is the atomic number of Tin-119? 50
21. The central core of an atom, composed of protons and neutrons is:
22. How many protons are in Ca +2? 20
23. The density of an object with a volume of 4ml and 2 g is? .5g/ml
24. Atoms with the same number of protons but different numbers of
neutrons are:
25. Which is more energetic, solid or gas?
26. How many electrons are in an atom of Au-196? 79
27. The symbol for potassium is?
28. A subatomic particle with no charge is:
29. The number of protons in the nucleus of an element is:
30. He said that atoms of the same element are exactly alike: dalton
31. The weighted average of the mass of the atoms in a naturally occurring
sample of an element is: atomic mass
32. How many neutrons are in an atom of nickel-58? 30
33. The symbol for carbon is:
34. What is the mass of Cl if it has 20 neutrons? 37
35. What did Rutherford figure out about the atom? Nucleus and empty space
36. A hot air balloon depends on which gas law?
37. What particle did Thomson discover?
38. What was his theory called?
39. The symbol for neon is:
40. What is the charge of an ion that has 9 protons and 10 electrons?
41. A negatively charged subatomic particles is:
42. A mixture with one phase is called by what other two names?
43. Who said that atoms move around the nucleus in specific orbits?
44. The total number of protons and neutrons in the nucleus if an atom is:
45. An atom of vanadium-51 has 23 electrons. How many neutrons does it
have? 28
46. The smallest particle of an element that retains the properties of that
element is
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