Unit 5 Atomic structure and PTOE questions well answers

Unit 5 Atomic structure and PTOE

Dimitri Mendeleev - correct answer ✔✔Russian scientist that created the periodic table according to
atomic mass



Niels Bohr - correct answer ✔✔the _________ model shows us the number of protons, neutrons, and
electrons



Atom - correct answer ✔✔Smallest particle of an element



Ion - correct answer ✔✔An atom or group of atoms that has a positive or negative charge.



Isotope - correct answer ✔✔An atom with the same number of protons and a different number of
neutrons



Charge - correct answer ✔✔A measure of the extra positive or negative particles that an object has.



Atomic Number - correct answer ✔✔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 - correct answer ✔✔The average of all the isotopes of an atoms' number of protons and
neutrons added together



Proton - correct answer ✔✔a positively charged particle in the nucleus of an atom



Neutron - correct answer ✔✔a neutrally charged particle in the nucleus of an atom



Electron - correct answer ✔✔a negatively charged particle that orbits an atom's nucleus