Bio 110 CCBC Exam #1 study guide
Questions with Correct Answers
Atomic number - ANSWERSthe # of protons
Element - ANSWERSare substances that cannot be broken down into simpler
substances by ordinary chemical reactions.
Isotope - ANSWERSform of an atom w/ a specific # of neutrons.
Atomic weight (Atomic Mass) - ANSWERSis the #that indicates how much matter that
atom contains compared w/ another atom. (# of P+) + (# of N) = atomic mass units
Kinetic energy - ANSWERSinvolves adding heat energy to make its molecules move
faster, to ^ the energy of motion. / energy in motion
Potential energy - ANSWERSstored energy / energy @ rest
Quantum - ANSWERSamount of energy needed to move an electron from 1 energy lvl
to the next.
Orbital - ANSWERSelectrons move through characteristic regions
According to the Bohr model of the atom, how many orbitals are there in the first energy
level?
How many in the second?
How many in the third? How many electrons can each orbital contain? - ANSWERS1st-
2
2nd- 8
3rd- 8
Molecule - ANSWERStwo or more atoms may become joined very strongly to form
stable particle.
Ion - ANSWERSan atom or molecule w/ a net elective charge due to loss or gain of one
or more electrons.
Ionic bond - ANSWERSbond between ions of opposite charge
Covalent bond - ANSWERSformed by shared pairs of electrons / electrons shared
equally
Questions with Correct Answers
Atomic number - ANSWERSthe # of protons
Element - ANSWERSare substances that cannot be broken down into simpler
substances by ordinary chemical reactions.
Isotope - ANSWERSform of an atom w/ a specific # of neutrons.
Atomic weight (Atomic Mass) - ANSWERSis the #that indicates how much matter that
atom contains compared w/ another atom. (# of P+) + (# of N) = atomic mass units
Kinetic energy - ANSWERSinvolves adding heat energy to make its molecules move
faster, to ^ the energy of motion. / energy in motion
Potential energy - ANSWERSstored energy / energy @ rest
Quantum - ANSWERSamount of energy needed to move an electron from 1 energy lvl
to the next.
Orbital - ANSWERSelectrons move through characteristic regions
According to the Bohr model of the atom, how many orbitals are there in the first energy
level?
How many in the second?
How many in the third? How many electrons can each orbital contain? - ANSWERS1st-
2
2nd- 8
3rd- 8
Molecule - ANSWERStwo or more atoms may become joined very strongly to form
stable particle.
Ion - ANSWERSan atom or molecule w/ a net elective charge due to loss or gain of one
or more electrons.
Ionic bond - ANSWERSbond between ions of opposite charge
Covalent bond - ANSWERSformed by shared pairs of electrons / electrons shared
equally
