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- 1. Multiple Choice
Electrons move around ___________ the nucleus and have a _________ charge.
inside, positive
on top of, negative
outside, negative
without, neutral
- 2. Multiple Choice
The center of an atom is called the ___________.
middle
top
nucleus
electron
- 3. Multiple Choice
The atomic number determines ____________
its symbol
what the element is
the number of protons and neutrons
the number of proton in the atom
- 4. Multiple Choice
What are the two parts of the nucleus?
protons and electrons
particles and molecules
protons and neutrons
protons and atomic number
- 5. Multiple Choice
Which particle of an atom has a positive charge?
proton
electron
neutron
nucleus
- 6. Multiple Choice
Neutrons have a neutral charge.
true
false
- 7. Multiple Choice
Which of these statements is not true about Carbon?
it is the most important element to life
it is able to form very stable bonds
it is the main element in organic compounds
it can be found in carbohydrates
- 8. Multiple Choice
Why is Carbon essential for life?
it is the 6th element on the periodic table
it is an element found in all living things
it is the main element in organic compounds
it has four protons on its outermost shell
- 9. Multiple Choice
What other elements, besides Carbon, are found in all living things in different percentages?
Beryllium, Oxygen, Nitrogen, Lithium, Hydrogen
Phosphorus, Boron, Helium, Sulfur, Oxygen
Sulfur, Oxygen, Nitrogen, Phosphorus, Hydrogen
Lithium, Boron, Oxygen, Nitrogen, Sulfur
- 10. Multiple Choice
What are the four organic molecules found in living things?
Carbohydrates, Lipids, Nucleic Acids, and Oxygen
Carbohydrates, Lipids, Proteins, and Nucleic acids
Carbohydrates, Lipids, Proteins, and Carbon
Carbohydrates, Lipids, Oxygen, and Nucleic acids
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