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Test your basic knowledge |
Basic Chemistry
Start Test
Study First
Subjects
:
science
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Occurs when atoms transfer electrons to other atoms
matter
ionic bond
atomic number
valence electrons
2. Atoms that have lost or gained electrons
ion
proton
atomic number
covalent bond
3. A covalent bond in which one pair of electrons is shared
ionic bond
ion
single bond
chemical reaction
4. A covalent bond in which one pair of electrons is shared
structural formula
radioactive isotope
single bond
double bond
5. Anything that occupies space and has mass
covalent bond
isotope
matter
ion
6. Atoms having the same numbers of protons but different numbers of neutrons
product
isotope
product
reactant
7. The smallest particle of an element that retains the properties of the element
single bond
covalent bond
molecule
atom
8. Occurs when atoms transfer electrons to other atoms
element
double bond
chemical formula
ionic bond
9. A pure substance that cannot be broken down into other substances by chemical reactions
structural formula
element
ion
atomic number
10. Substance made of two or more elements & one being carbon
electron
atomic number
organic compound
atom
11. Atoms having the same numbers of protons but different numbers of neutrons
proton
isotope
valence electrons
ionic bond
12. A pure substance that cannot be broken down into other substances by chemical reactions
isotope
electron
element
chemical reaction
13. Subatomic particle having a negative charge; not in nucleus but surrounds it
radioactive isotope
reactant
inorganic compound
electron
14. Interaction of substances that lead to the formation of new substances
ionic bond
chemical reaction
reactant
radioactive isotope
15. Identifies a specific element; equals the number of protons in an atom of each element
atomic number
chemical reaction
inorganic compound
compound
16. Indicates the formation of new substances from previous substances
covalent bond
chemical reaction
neutron
chemical formula
17. Substance containing two or more elements chemically combined in a fixed ratio
element
chemical reaction
molecule
compound
18. Indicates the formation of new substances from previous substances
chemical formula
atom
isotope
chemical reaction
19. Protons and neutrons together; make up the center of an atom
structural formula
chemical reaction
nucleus
product
20. The starting materials for a reaction; found on left side of chemical equation
reactant
organic compound
chemical reaction
atomic number
21. Identifies a specific element; equals the number of protons in an atom of each element
atom
valence electrons
atomic number
double bond
22. Substance containing two or more elements chemically combined in a fixed ratio
reactant
atomic number
organic compound
compound
23. Subatomic particle without a charge; found in nucleus
nucleus
inorganic compound
atomic number
neutron
24. Ending materials of a reaction; found on right side of chemical equation
electron
chemical reaction
atomic number
product
25. Subatomic particle without a charge; found in nucleus
element
neutron
inorganic compound
valence electrons
26. Substance made of two or more elements & none of which is carbon
chemical formula
ionic bond
element
inorganic compound
27. Subatomic particle having a positive charge; found in nucleus
chemical reaction
radioactive isotope
proton
covalent bond
28. Protons and neutrons together; make up the center of an atom
nucleus
reactant
chemical reaction
molecule
29. The starting materials for a reaction; found on left side of chemical equation
organic compound
reactant
chemical reaction
single bond
30. Atoms that are held together by covalent bonds
ion
molecule
electron
chemical reaction
31. A covalent bond in which four valence electrons are shared between two atoms
atomic number
double bond
chemical reaction
reactant
32. A covalent bond in which four valence electrons are shared between two atoms
neutron
double bond
radioactive isotope
valence electrons
33. The smallest particle of an element that retains the properties of the element
ion
neutron
chemical formula
atom
34. Subatomic particle having a negative charge; not in nucleus but surrounds it
atom
electron
matter
covalent bond
35. Indicates the number and types of atoms in a molecule
ion
chemical formula
single bond
inorganic compound
36. Shows the number and types of atoms in a molecule and how they are arranged
compound
nucleus
structural formula
atom
37. Indicates the number and types of atoms in a molecule
atom
nucleus
chemical reaction
chemical formula
38. Ending materials of a reaction; found on right side of chemical equation
inorganic compound
matter
product
proton
39. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy
product
chemical formula
isotope
radioactive isotope
40. Occurs when atoms share electrons
covalent bond
matter
molecule
inorganic compound
41. Substance made of two or more elements & none of which is carbon
molecule
element
inorganic compound
element
42. Interaction of substances that lead to the formation of new substances
chemical reaction
product
reactant
element
43. Anything that occupies space and has mass
compound
element
matter
ionic bond
44. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy
atom
single bond
nucleus
radioactive isotope
45. Electrons in the outermost energy level; they are involved in bond formation
atom
proton
element
valence electrons
46. Electrons in the outermost energy level; they are involved in bond formation
valence electrons
isotope
ion
compound
47. Shows the number and types of atoms in a molecule and how they are arranged
chemical reaction
structural formula
organic compound
radioactive isotope
48. Subatomic particle having a positive charge; found in nucleus
atomic number
proton
organic compound
valence electrons
49. Atoms that are held together by covalent bonds
molecule
electron
isotope
single bond
50. Occurs when atoms share electrons
structural formula
chemical formula
chemical reaction
covalent bond