10 Questions
Which of the following is NOT one of the three states of matter?
Plasma
Which of the following is NOT an element that makes up 95% of organisms by weight?
Calcium
Which subatomic particle is found in the nucleus of an atom?
Proton
In an electrically neutral atom, what balances the positive charges of protons in the nucleus?
Electrons
How many electrons does the first energy level (electron orbital) contain?
Two
Which of the following is NOT a state of matter?
Plasma
Which element makes up the highest percentage of organisms by weight?
Carbon
Which subatomic particle is uncharged?
Neutron
Which energy level (electron orbital) contains the first two electrons?
First
Which subatomic particle moves around the nucleus?
Electron
Study Notes
States of Matter
- Plasma is NOT one of the three traditional states of matter.
Composition of Organisms
- Oxygen (O), Carbon (C), Hydrogen (H), and Nitrogen (N) make up 95% of organisms by weight.
Atomic Structure
- Protons and Neutrons are found in the nucleus of an atom.
- Electrons balance the positive charges of protons in an electrically neutral atom.
Electron Orbitals
- The first energy level (electron orbital) contains 2 electrons.
- The first energy level (electron orbital) contains the first two electrons.
Subatomic Particles
- Neutrons are uncharged subatomic particles.
- Electrons move around the nucleus.
Test your knowledge of biomolecules and basic chemistry in this quiz. Learn about the elements that make up 95% of organisms by weight and understand the three states of matter.
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