Atomic Structure Definitions Question Preview (ID: 21954)


Element, Atom, Proton, Neutron, Electron, Atomic Number, Mass Number, Isotope, Nucleus,. TEACHERS: click here for quick copy question ID numbers.

What is the definition of NUCLEUS?
a) Atoms of the same element that have the same atomic number but a different mass number.
b) The number of protons in the nucleus of an atom of an element.
c) The tiny and dense central portion of an atom, composed of protons and neutrons.
d) The total number of neutrons and protons in the nucleus of an atom.

What is the definition of ISOTOPE?
a) Atoms of the same element that have the same atomic number but a different mass number.
b) A positively charged subatomic particle found in the nucleus.
c) The number of protons in the nucleus of an atom of an element.
d) The smallest particle of an element that retains its identity.

What is the definition of MASS NUMBER?
a) Atoms of the same element that have the same atomic number but a different mass number.
b) The simplest form or matter that has a unique set or properties.
c) The number of protons in the nucleus of an atom of an element.
d) The total number of neutrons and protons in the nucleus of an atom.

What is the definition of ATOMIC NUMBER?
a) The number of protons in the nucleus of an atom of an element.
b) The total number of neutrons and protons in the nucleus of an atom.
c) The smallest particle of an element that retains its identity.
d) A positively charged subatomic particle found in the nucleus.

What is the definition of ELECTRON?
a) A subatomic particle with no charge and found in the nucleus.
b) The simplest form or matter that has a unique set or properties.
c) A negatively charged subatomic particle.
d) The tiny and dense central portion of an atom, composed of protons and neutrons.

What is the definition of NEUTRON?
a) The simplest form or matter that has a unique set or properties.
b) A subatomic particle with no charge and found in the nucleus.
c) A negatively charged subatomic particle.
d) A positively charged subatomic particle found in the nucleus.

What is the definition of PROTON?
a) A subatomic particle with no charge and found in the nucleus.
b) A negatively charged subatomic particle.
c) The simplest form or matter that has a unique set or properties.
d) A positively charged subatomic particle found in the nucleus.

What is the definition of ATOM?
a) A subatomic particle with no charge and found in the nucleus.
b) The simplest form or matter that has a unique set or properties.
c) The smallest particle of an element.
d) A negatively charged subatomic particle.

What is the definition of ELEMENT?
a) The simplest form or matter that has a unique set or properties.
b) A positively charged subatomic particle found in the nucleus.
c) The number of protons in the nucleus of an atom of an element.
d) The smallest particle of an element.

When is your Exam over Unit 4?
a) Tuesday December 9th! I better study! :)
b) Who cares...
c) IDK.
d) Never

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