BSC 108 EXAM 3 KENNEDY COMPLETE
QUESTIONS ACCURATE ANSWERS GRADED
A PLUS PREMIUM STUDY SHEET
⩥ Components of the Scientific method
Answer: "If, Then" statement that connects an independent and
dependent variable
⩥ A _____ is a tentative explanation for an observation
Answer: Hypothesis
⩥ A ____ is a much broader, widely accepted hypothesis
Answer: Theory
⩥ Limit of science
Answer: Explaining the world we live in
⩥ An ____ is the smallest unit of an element that has all its properties
Answer: Atom
⩥ Components of an atom
Answer: Proton, neutron, electron
,⩥ An _____ is a charged atom
Answer: Ion
⩥ An ____ of an element contain different number of neutrons
Answer: Isotope
⩥ The capability to do work, make a change in matter
Answer: Energy
⩥ Stored energy
Answer: Potential energy (stored in the bonds that hold atoms together)
⩥ Doing work energy, when bonds that hold atoms together are broken
Answer: Kinetic energy
⩥ A ____ element is an element that our body needs little amount of
Answer: Trace
⩥ A ____ isotope is classified by the decay of its nucleus, giving off
particles and energy. Used by scientists to determine relative age of
fossils
, Answer: Radioactive
⩥ Number of electrons in each orbital
Answer: 2, 8, 18
⩥ The ____ is the number of protons in an element
Answer: Atomic number
⩥ The ____ is the number of protons and neutrons
Answer: Atom's mass number (atomic weight)
⩥ 3 kinds of chemical bonds
Answer: Covalent, ionic, and hydrogen
⩥ A bond when two atoms share one or more pairs of outer-shell
electrons
Answer: Covalent bond (strongest bond)
⩥ A type of bond where two opposite charged ions are attracted together
Answer: Ionic bonds (moderate strength)
QUESTIONS ACCURATE ANSWERS GRADED
A PLUS PREMIUM STUDY SHEET
⩥ Components of the Scientific method
Answer: "If, Then" statement that connects an independent and
dependent variable
⩥ A _____ is a tentative explanation for an observation
Answer: Hypothesis
⩥ A ____ is a much broader, widely accepted hypothesis
Answer: Theory
⩥ Limit of science
Answer: Explaining the world we live in
⩥ An ____ is the smallest unit of an element that has all its properties
Answer: Atom
⩥ Components of an atom
Answer: Proton, neutron, electron
,⩥ An _____ is a charged atom
Answer: Ion
⩥ An ____ of an element contain different number of neutrons
Answer: Isotope
⩥ The capability to do work, make a change in matter
Answer: Energy
⩥ Stored energy
Answer: Potential energy (stored in the bonds that hold atoms together)
⩥ Doing work energy, when bonds that hold atoms together are broken
Answer: Kinetic energy
⩥ A ____ element is an element that our body needs little amount of
Answer: Trace
⩥ A ____ isotope is classified by the decay of its nucleus, giving off
particles and energy. Used by scientists to determine relative age of
fossils
, Answer: Radioactive
⩥ Number of electrons in each orbital
Answer: 2, 8, 18
⩥ The ____ is the number of protons in an element
Answer: Atomic number
⩥ The ____ is the number of protons and neutrons
Answer: Atom's mass number (atomic weight)
⩥ 3 kinds of chemical bonds
Answer: Covalent, ionic, and hydrogen
⩥ A bond when two atoms share one or more pairs of outer-shell
electrons
Answer: Covalent bond (strongest bond)
⩥ A type of bond where two opposite charged ions are attracted together
Answer: Ionic bonds (moderate strength)
