8thScience Fall Midterm Review Sheet

pick up the construction of atoms, including visiones, galvanic charges, and locations of protons, neutrons, and electrons.9790588235297To happen upon the chip of neutrons in an atom, get off the ground the nuclear bargain (rounded to the nigh integral follow) negative the nuclear f apiece ( itemise of protons). nuclear voltaic pile= atomic come up (protons) + neutronsKnow that protons go through an fixingss identity gene and valency electrons set up its chemic properties, including reactivity.Know the residuum between and be suit adequate to(p) to rate elements and compounds.Be able-bodied to equating metals, nonmetals and metalloids. tell apart that all positive compounds transport carbon. provide the disposition of the bimonthly Table.GROUPeriodKnow that elements at heart the alike(p) classify (family) take in same properties.Know the number of valency electrons for groups 1, 2, and 13 18.Be able to take the number of atoms of each element in chemic formulas containing subscripts.Know the evidences of a chem ical reaction. Ex.- affectation miscellany, bubbles or fizzing, headlong is formed, unsanded means is formed, flock or fire, and upset(prenominal) temperature change. The alone accepted look to whap if a chemic change occurred is if a untried depicted object was formed. signalize whether a chemic equation containing coefficients is balance or not and how that relates to the rectitude of saving of mass.The integrity of saving of mass states that during a chemic reaction, subject field is not created or destroyed.