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Mathews: Elem, Comp, & Mix
  • 1. Smallest unit of matter
A) solid
B) comound
C) atom
D) electron
  • 2. number of protons in an atom
A) covalent
B) atomic number
C) atomic mass
D) compound
  • 3. compound
A) 2 or more elements chemically bonded
B) a heterogeneous mixture
C) a homogenous mixture
D) a pure substance on the periodic table
  • 4. small negatively charged subatomic particle
A) quark
B) electron
C) neutron
D) proton
  • 5. substances that are the building blocks of all matter, made up of one type of atom
A) element
B) mixture
C) atom
D) compound
  • 6. a mixture in which parts can be distinguished from each other
A) heterogeneous mixture
B) element
C) compound
D) homogeneous mixture
  • 7. a mixture with a uniform appearance
A) heterogeneous mixture
B) element
C) compound
D) homogeneous mixture
  • 8. smallest particle of a substance that still have the properties of that substance
A) compound
B) grain
C) molecule
D) ion
  • 9. combination of 2 or more substances that can be physically seperated
A) element
B) molecule
C) compound
D) mixture
  • 10. a neutrally charged subatomic particle
A) nucleus
B) neutron
C) electron
D) proton
  • 11. dense center of an atom
A) electron
B) nucleus
C) neutron
D) proton
  • 12. positive subatomic particle
A) electron
B) proton
C) neutron
D) nucleus
  • 13. part of a solution that is dissolved
A) concentration
B) solute
C) solvent
D) solubility
  • 14. a homogenous mixture
A) heterogenous
B) compound
C) solute
D) solution
  • 15. part of a solution that dissolves other substances
A) solute
B) solubility
C) concentration
D) solvent
  • 16. thickness of a fluid
A) plasticity
B) density
C) buoyancy
D) viscosity
  • 17. Protons have a _______________ charge.
A) positive
B) neutral
C) negative
  • 18. Which element on the Periodic Table of Elements is 'out of place' or appears to not be with other elements that share similar properties? HINT: has no NEUTRONS
A) Carbon
B) Aluminum
C) Gold
D) Hydrogen
  • 19. What is all matter made up of?
A) metal
B) atoms
C) carbon
D) cells
  • 20. Which of these is not part of an atom?
A) proton
B) neutron
C) element
D) electron
  • 21. Which statement is true about elements?
A) Elements are made from mixtures of molecules.
B) There are only five known elements.
C) Each element contains only one kind of atom.
D) All elements are metallic.
  • 22. Angie has a substance that is made up of only one type of atom. What is her substance called?
A) an alloy
B) matter with no mass
C) a compound
D) an element
  • 23. True or false. Atoms have a nucleus.
A) False
B) True
  • 24. True or false. Inside the nucleus are protons and electrons.
A) True
B) False
  • 25. True or false. The electrons race around outside of the nucleus.
A) True
B) False
  • 26. Electrons have a _______________ charge.
A) positive
B) neutral
C) negative
  • 27. Neutrons have a _______________ charge.
A) negative
B) positive
C) neutral
  • 28. Hydrogen (H) is an example of __________________.
A) a proton
B) a mixture
C) a compound
D) an element
  • 29. Oxygen (O) is an example of _______________.
A) a proton
B) an element
C) a mixture
D) a compound
  • 30. Water (H2O) is an example of ___________________.
A) a compound
B) a proton
C) an atom
D) an element
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