6TH EDITION CHAPTER 2 WITH ACTUAL
QUESTIONS AND ANSWERS GRADED A+.
What i*is i*matter? i*- i*CORRECT i*ANSWER-Matter i*is i*anything i*that i*occupies i*space.
Matter i*exists i*in i*3 i*states: i*1,2,3. i*- i*CORRECT i*ANSWER-Liquid, i*gas, i*and i*solid.
What i*is i*an i*element? i*- i*CORRECT i*ANSWER-An i*element i*is i*matter i*that i*is i*composed
i*of i*atoms i*tat i*have i*the i*same i*number i*of i*positive i*charges i*in i*their i*nuclei.
What i*elements i*make i*up i*96% i*of i*the i*body i*weight? i*- i*CORRECT i*ANSWER-Carbon,
i*hydrogen, i*oxygen, i*and i*nitrogen.
What i*are i*elements i*composed i*of? i*- i*CORRECT i*ANSWER-Atoms.
What i*is i*an i*atom? i*- i*CORRECT i*ANSWER-Atom i*is i*the i*smallest i*unit i*of i*an i*element.
What i*is i*an i*atom i*composed i*of? i*- i*CORRECT i*ANSWER-A i*proton, i*neutron, i*and
i*electron.
Where i*are i*the i*protons i*and i*neutrons i*located? i*- i*CORRECT i*ANSWER-In i*the i*nucleus.
Protons i*carry i*a i*_____ i*charge. i*- i*CORRECT i*ANSWER-Positive i*electric i*charge.
Neutrons i*carry i*_______ i*charge. i*- i*CORRECT i*ANSWER-No i*electrical i*charge.
Electrons i*carry i*a i*______ i*charge. i*- i*CORRECT i*ANSWER-Negative i*electrical i*charge.
, ______ i*is i*the i*simplest i*and i*smallest i*atom. i*- i*CORRECT i*ANSWER-Hydrogen.
What i*is i*a i*compound? i*- i*CORRECT i*ANSWER-If i*a i*molecule i*is i*built i*from i*two i*or
i*more i*different i*elements.
What i*is i*the i*atomic i*number? i*- i*CORRECT i*ANSWER-The i*number i*of i*protons i*in i*the
i*nucleus.
How i*is i*the i*atomic i*mass i*determined? i*- i*CORRECT i*ANSWER-By i*adding i*the i*numbers
i*of i*the i*protons i*and i*neutrons i*in i*the i*nucleus.
What i*is i*an i*isotope? i*- i*CORRECT i*ANSWER-A i*different i*form i*of i*the i*same i*atom.
Describe i*an i*isotope. i*- i*CORRECT i*ANSWER-Often i*unstable, i*and i*their i*nuclei i*break
i*down, i*or i*decay, i*giving i*off i*energy.
What i*are i*unstable i*isotopes i*called? i*- i*CORRECT i*ANSWER-Radioisotopes.
The i*process i*of i*decay i*is i*called i*_______. i*- i*CORRECT i*ANSWER-Radioactivity.
Electrons i*surround i*in i*the i*nucleus i*in i*orbits i*called i*energy i*levels i*or i*________. i*-
i*CORRECT i*ANSWER-Electron i*shells.
How i*many i*electrons i*can i*each i*shell i*of i*the i*nucleus i*hold? i*- i*CORRECT i*ANSWER-The
i*inner i*shell i*can i*only i*hold i*two, i*while i*the i*second i*and i*the i*third i*can i*hold i*eight
i*each.
What i*are i*the i*three i*types i*of i*chemical i*bonds? i*- i*CORRECT i*ANSWER-Ionic, i*convalent,
i*and i*hydrogen.
Describe i*ionic i*bond. i*- i*CORRECT i*ANSWER-Caused i*by i*a i*transfer i*of i*electrons i*between
i*atoms.