atoms and periodic table review

electrons have a (a)   charge and are found outside of the nucleus.

Tags

NGSS.MS-PS2-3

(a)   are positive and found inside of the nucleus

NO MASS - much (a)   in size than protons and neutrons

protons and neutrons have a mass of 1

(a)  

neutrons are _________ and have __ charge; they are found inside the nucleus

(a)  

(a)   identifies the element (same as atomic number) think PIE.

_________ __________ tell you reactivity and chemical properties. think CRAVE.

(a)  

group 1/1A and group 17/7A (a)   reactive

group 1A is the most reactive (a)   .

group 7A is the most reactive (a)