BIO 1201 EXAM 1 GREGG QUESTIONS
& A+ GRADED ANSWERS
Matter consists of chemical elements in pure form and in combinations called
______________. - Correct Answer ✔✔ Compounds
______________ consists of chemical elements in pure form and in combinations
called compounds. - Correct Answer ✔✔ Matter
Matter consists of ________________ in pure form and in combinations called
compounds. - Correct Answer ✔✔ Chemical elements
Organisms are composed of _____________. - Correct Answer ✔✔ Matter
_______________ is anything that takes up space and has mass. - Correct Answer ✔✔
Matter
Matter is anything that takes up __________ and has _______. - Correct Answer ✔✔
Space; mass
Matter is made up of ____________. - Correct Answer ✔✔ Elements
An _________________ is a substance that cannot be broken down other substances
by chemical reactions - Correct Answer ✔✔ Element
A ___________________ is a substance consisting of two or more elements in a fixed
ratio. - Correct Answer ✔✔ Compound
T/F: A compound has characteristics different from those of its elements - Correct
Answer ✔✔ True
An element's properties depend on the structure of its ______. - Correct Answer ✔✔
Atom
An ____________ is the smallest unit of matter that still retains the properties of an
element. - Correct Answer ✔✔ Atom
Atoms can be broken down into smaller particles like ___________ (no charge),
______________ have a positive charge, and _____________ (negative). - Correct
Answer ✔✔ Neutrons, protons, and electrons
No electrical charge - Correct Answer ✔✔ Neutron
, Postive charge - Correct Answer ✔✔ Proton
Negative charge - Correct Answer ✔✔ Electron
_____________ and ___________ form from the atomic nucleus. - Correct Answer ✔✔
Neutrons and protons
What do neutrons and protons form from? - Correct Answer ✔✔ Atomic nucleus
________________ form a "cloud" of negative charge around the nucleus. - Correct
Answer ✔✔ Electrons
Electrons form a "_______" of negative charge around the nucleus. - Correct Answer
✔✔ Cloud
Neutron mass and proton mass are almost identical and are measured in __________.
- Correct Answer ✔✔ Daltons
____________ mass and _________ mass are almost identical and are measured in
daltons. - Correct Answer ✔✔ Neutron and proton
Atoms of the various elements differ in number of ________________. - Correct
Answer ✔✔ Subatomic particles
An element's atomic number is the number of ___________ in its nucleus. - Correct
Answer ✔✔ Protons
An element's _________________ is the number of protons in its nucleus. - Correct
Answer ✔✔ Atomic number
An element's ___________ is the sum of protons plus neutrons in the nucleus. - Correct
Answer ✔✔ Mass number
An element's mass number is the sum of _________ plus _________ in the nucleus. -
Correct Answer ✔✔ Protons; neutrons
_______________, the atom's total mass, can be approximated by the mass number. -
Correct Answer ✔✔ Atomic mass
All atoms of an element have the same number of __________ but may differ in number
of _____________. - Correct Answer ✔✔ Protons; neutrons
______________ are two atoms of an element that differ in number of neutrons. -
Correct Answer ✔✔ Isotopes
& A+ GRADED ANSWERS
Matter consists of chemical elements in pure form and in combinations called
______________. - Correct Answer ✔✔ Compounds
______________ consists of chemical elements in pure form and in combinations
called compounds. - Correct Answer ✔✔ Matter
Matter consists of ________________ in pure form and in combinations called
compounds. - Correct Answer ✔✔ Chemical elements
Organisms are composed of _____________. - Correct Answer ✔✔ Matter
_______________ is anything that takes up space and has mass. - Correct Answer ✔✔
Matter
Matter is anything that takes up __________ and has _______. - Correct Answer ✔✔
Space; mass
Matter is made up of ____________. - Correct Answer ✔✔ Elements
An _________________ is a substance that cannot be broken down other substances
by chemical reactions - Correct Answer ✔✔ Element
A ___________________ is a substance consisting of two or more elements in a fixed
ratio. - Correct Answer ✔✔ Compound
T/F: A compound has characteristics different from those of its elements - Correct
Answer ✔✔ True
An element's properties depend on the structure of its ______. - Correct Answer ✔✔
Atom
An ____________ is the smallest unit of matter that still retains the properties of an
element. - Correct Answer ✔✔ Atom
Atoms can be broken down into smaller particles like ___________ (no charge),
______________ have a positive charge, and _____________ (negative). - Correct
Answer ✔✔ Neutrons, protons, and electrons
No electrical charge - Correct Answer ✔✔ Neutron
, Postive charge - Correct Answer ✔✔ Proton
Negative charge - Correct Answer ✔✔ Electron
_____________ and ___________ form from the atomic nucleus. - Correct Answer ✔✔
Neutrons and protons
What do neutrons and protons form from? - Correct Answer ✔✔ Atomic nucleus
________________ form a "cloud" of negative charge around the nucleus. - Correct
Answer ✔✔ Electrons
Electrons form a "_______" of negative charge around the nucleus. - Correct Answer
✔✔ Cloud
Neutron mass and proton mass are almost identical and are measured in __________.
- Correct Answer ✔✔ Daltons
____________ mass and _________ mass are almost identical and are measured in
daltons. - Correct Answer ✔✔ Neutron and proton
Atoms of the various elements differ in number of ________________. - Correct
Answer ✔✔ Subatomic particles
An element's atomic number is the number of ___________ in its nucleus. - Correct
Answer ✔✔ Protons
An element's _________________ is the number of protons in its nucleus. - Correct
Answer ✔✔ Atomic number
An element's ___________ is the sum of protons plus neutrons in the nucleus. - Correct
Answer ✔✔ Mass number
An element's mass number is the sum of _________ plus _________ in the nucleus. -
Correct Answer ✔✔ Protons; neutrons
_______________, the atom's total mass, can be approximated by the mass number. -
Correct Answer ✔✔ Atomic mass
All atoms of an element have the same number of __________ but may differ in number
of _____________. - Correct Answer ✔✔ Protons; neutrons
______________ are two atoms of an element that differ in number of neutrons. -
Correct Answer ✔✔ Isotopes
