BIO 1201 Unit 1 Sammons LSUA Exam
Questions and Answers 100% Pass
Non Polar - ✔✔electonegativity sum of two elements is more than 0.5
Polar - ✔✔electronegativity sum of two elements is less than 0.5
4C (39F) - ✔✔Water is most dense
Valence Shell - ✔✔outermost electron shell
element - ✔✔A substance that cannot be broken down into simpler substances
compound - ✔✔A substance made up of atoms of two or more different elements joined
by chemical bonds
atom - ✔✔smallest unit of matter
ion - ✔✔different number of elections than protons
isotope - ✔✔different number of neutrons than protons
cation - ✔✔loss of electrons (makes it positive)
anion - ✔✔gain of electrons (makes it negative)
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, isotopes biologically apply by - ✔✔dating fossils, tracing atoms through metabolic
pathways, and diagnosing medical disorders
carbon, hydrogen, oxygen, nitrogen - ✔✔96% of living matter
1 - ✔✔Hydrogen atomic number
12 - ✔✔Carbon atomic number
14 - ✔✔Nitrogen atomic number
15.99 - ✔✔Oxygen atomic number
electron shells - ✔✔where electrons orbit their nucleus
electrons with less energy - ✔✔orbit in shells closer to the nucleus
electrons with more energy - ✔✔orbit in shells farther from nucleus
valence electrons - ✔✔electrons in the outermost shell
valence electrons - ✔✔The chemical behavior of an atom is determined by
full valence shell - ✔✔atoms with incomplete valence shells can share or transfer
valence electrons with other atoms in an attempt to get a
4 types of chemical bonds - ✔✔covalent, ionic, hydrogen, van der waals
covalent bonds - ✔✔when two atoms share a pair of valence electrons
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Questions and Answers 100% Pass
Non Polar - ✔✔electonegativity sum of two elements is more than 0.5
Polar - ✔✔electronegativity sum of two elements is less than 0.5
4C (39F) - ✔✔Water is most dense
Valence Shell - ✔✔outermost electron shell
element - ✔✔A substance that cannot be broken down into simpler substances
compound - ✔✔A substance made up of atoms of two or more different elements joined
by chemical bonds
atom - ✔✔smallest unit of matter
ion - ✔✔different number of elections than protons
isotope - ✔✔different number of neutrons than protons
cation - ✔✔loss of electrons (makes it positive)
anion - ✔✔gain of electrons (makes it negative)
Brittie Donald, All Rights Reserved © 2025 1
, isotopes biologically apply by - ✔✔dating fossils, tracing atoms through metabolic
pathways, and diagnosing medical disorders
carbon, hydrogen, oxygen, nitrogen - ✔✔96% of living matter
1 - ✔✔Hydrogen atomic number
12 - ✔✔Carbon atomic number
14 - ✔✔Nitrogen atomic number
15.99 - ✔✔Oxygen atomic number
electron shells - ✔✔where electrons orbit their nucleus
electrons with less energy - ✔✔orbit in shells closer to the nucleus
electrons with more energy - ✔✔orbit in shells farther from nucleus
valence electrons - ✔✔electrons in the outermost shell
valence electrons - ✔✔The chemical behavior of an atom is determined by
full valence shell - ✔✔atoms with incomplete valence shells can share or transfer
valence electrons with other atoms in an attempt to get a
4 types of chemical bonds - ✔✔covalent, ionic, hydrogen, van der waals
covalent bonds - ✔✔when two atoms share a pair of valence electrons
Brittie Donald, All Rights Reserved © 2025 2
