Intro to Bio SG, ch. 2

Intro to Bio SG, ch. 2 - the number of neutrons the size of...

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CHAPTER 2 A substance that cannot be broken down into other substances by ordinary chemical procedures is a(n) _____. element compound isotope proton molecule Which of the following is a trace element required by most living organisms? oxygen carbon hydrogen magnesium nitrogen Which of the following subatomic particles always has a positive charge? atom electron neutron element proton Changing the number of _____ would change an atom into an atom of a different element. electrons circling the nucleus of an atom particles in the nucleus of an atom protons in an atom neutrons in an atom bonds formed by an atom The atoms of different phosphorus isotopes _____.
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react differently with other atoms have different atomic numbers have different numbers of electrons have different numbers of protons have different numbers of neutrons The type of bonding and the numbers of covalent bonds an atom can form with other atoms is determined by _____. the number of unpaired electrons in the v the number of protons
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Unformatted text preview: the number of neutrons the size of the atom; smaller atoms are chem the nucleus A carbon atom and a hydrogen atom form what type of bond in a molecule? hydrogen bond polar covalent bond Van der Waals interaction ionic bond nonpolar covalent bond An ionic bond is formed when _____. both atoms are nonpolar atoms are subjected to radioactive isotopes one atom transfers an electron to another atom both atoms are electrically neutral both atoms are equally attractive to electrons Hydrogen bonding is most often seen _____. when hydrogen is covalently bonded to when multiple carbon atoms are present in molecules whose three-dimensional sh if the molecule consists of three or fewer when the bonds within the molecule are n Chemical equilibrium is reached when _____. the reverse reac all of the reacta the rate at whic the forward an reactants and matter is conser An atom has 6 electrons in its outer shell. How many unpaired electrons does it have? 4 2 2 or 4 0 6...
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Intro to Bio SG, ch. 2 - the number of neutrons the size of...

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