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Penn Foster Vet Tech Biology-The Cell questions with correct answers
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Matter Correct Answer-Defined as anything that takes up space and has mass. Exists as solid, liquid, gas, or plasma. Element Correct Answer-What all matter is composed of. A substance that cannot be broken down into other substances by ordinary chemical means. Carbon, hydrogen, oxygen, nitrog...

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  • October 3, 2024
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Penn Foster Vet Tech Biology-The Cell questions with
correct answers
Matter Correct Answer-Defined as anything that takes up space and has
mass. Exists as solid, liquid, gas, or plasma.


Element Correct Answer-What all matter is composed of. A substance
that cannot be broken down into other substances by ordinary chemical
means.


Carbon, hydrogen, oxygen, nitrogen Correct Answer-four most common
elements in living organisms.


Atomic Theory Correct Answer-States that elements consist of tiny
particles called atoms.


Atomic Symbol Correct Answer-Name of an element represented by
only one or two letters.


What is an atom made up of Correct Answer-Three subatomic particles:
protons, neutrons, and electrons.


Neutrons Correct Answer-Particles located in the nucleus with no
electrical charge.


Protons Correct Answer-Particles located in the nucleus with a positive
electrical charge.

,Electrons Correct Answer-Particles that move around the nucleus with a
negative electrical charge.


Nucleus Correct Answer-The center of the atom containing protons and
neutrons.


Mass Number Correct Answer-Equal to the number of protons and
neutrons in an atom.


Atomic Number Correct Answer-Number of protons in the nucleus of an
atom located above the atomic symbol of an element on the periodic
table.


Atomic Mass Correct Answer-The average of the mass numbers for
specific atoms located below the atomic symbol of an element on the
periodic table.


Period Correct Answer-Horizontal rows on a periodic table.


Group Correct Answer-Vertical Columns on a periodic table.


Isotopes Correct Answer-Atoms of the same element that differ in the
number of neutrons. Have the same number of protons, but differ in
mass numbers.

, Electrons Shells Correct Answer-Energy levels that show electrons
around the nucleus.


Octet Rule Correct Answer-States that if an atom has two or more shells,
the outer shell is most stable when it has eight electrons.


Valence Shell Correct Answer-The atom's outermost shell.


Molecule Correct Answer-Group of atoms bonded together.


Compound Correct Answer-A molecule that contains atoms of more
than one element.


Ionic Bond Correct Answer-Forms when two atoms are held together by
the attraction between opposite charges.


Ions Correct Answer-Charged atoms that have gained or lost electrons


Salts Correct Answer-Solid substances that usually separate and exist as
individual ions in water.


Covalent bond Correct Answer-Results when two atoms share electrons
in order to have a completed outer shell.

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