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