Atomic structure and PTOE Unit 5 Exam Questions and Answers Rated 100%
Dimitri Mendeleev - Answers russian scientist that created the perodic table according to atomic mass
Niels Bohr - Answers the _________ model shows us the number of protons, neutrons, and electrons
Atom - Answers Smallest particle of an element
Ion - Answers An atom or group of atoms that has a positive or negative charge.
Isotope - Answers An atom with the same number of protons and a different number of neutrons
Charge - Answers A measure of the extra positive or negative particles that an object has.
Atomic Number - Answers the number of protons in the nucleus of an atom and is generally located in
the top left corner of an an element box
Atomic Mass - Answers The average of all the isotopes of an atoms' number of protons and neutrons
added together
Proton - Answers a positively charged particle in the nucleus of an atom
Neutron - Answers a neutrally charged particle in the nucleus of an atom
Electron - Answers a negatively charged particle that orbits an atom's nucleus
Periodic Table - Answers A table that shows the elements, their atomic number, symbol, and average
atomic mass; elements with similar chemical properties are grouped together.
Element - Answers A pure substance made of only one kind of atom
Valence Electrons - Answers Electrons on the outermost shell of an atom
Nucleus - Answers The center of an atom, containing protons and neutrons
Electron Cloud - Answers a region around the nucleus of an atom where electrons are likely to be found
Metals - Answers Properties include shininess, malleability, ductility, and conductivity
Nonmetals - Answers Properties include poor conductors of heat and electric current
Metalloid - Answers an element that has properties of both metals and nonmetals
Reactivity - Answers How readily a substance combines chemically with other substances.
Boiling Point - Answers The temperature at which a liquid changes to a gas
Melting Point - Answers The temperature at which a solid becomes a liquid
Malleability - Answers the ability of a substance to be hammered or beaten into thin sheets
Dimitri Mendeleev - Answers russian scientist that created the perodic table according to atomic mass
Niels Bohr - Answers the _________ model shows us the number of protons, neutrons, and electrons
Atom - Answers Smallest particle of an element
Ion - Answers An atom or group of atoms that has a positive or negative charge.
Isotope - Answers An atom with the same number of protons and a different number of neutrons
Charge - Answers A measure of the extra positive or negative particles that an object has.
Atomic Number - Answers the number of protons in the nucleus of an atom and is generally located in
the top left corner of an an element box
Atomic Mass - Answers The average of all the isotopes of an atoms' number of protons and neutrons
added together
Proton - Answers a positively charged particle in the nucleus of an atom
Neutron - Answers a neutrally charged particle in the nucleus of an atom
Electron - Answers a negatively charged particle that orbits an atom's nucleus
Periodic Table - Answers A table that shows the elements, their atomic number, symbol, and average
atomic mass; elements with similar chemical properties are grouped together.
Element - Answers A pure substance made of only one kind of atom
Valence Electrons - Answers Electrons on the outermost shell of an atom
Nucleus - Answers The center of an atom, containing protons and neutrons
Electron Cloud - Answers a region around the nucleus of an atom where electrons are likely to be found
Metals - Answers Properties include shininess, malleability, ductility, and conductivity
Nonmetals - Answers Properties include poor conductors of heat and electric current
Metalloid - Answers an element that has properties of both metals and nonmetals
Reactivity - Answers How readily a substance combines chemically with other substances.
Boiling Point - Answers The temperature at which a liquid changes to a gas
Melting Point - Answers The temperature at which a solid becomes a liquid
Malleability - Answers the ability of a substance to be hammered or beaten into thin sheets
