atoms and periodic table review

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

Tags

NGSS.MS-PS2-3

________ are positive and found inside of the nucleus

NO MASS - much _________ in size than protons and neutrons

protons and neutrons have a mass of 1

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

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

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

group 1/1A and group 17/7A _____ reactive

group 1A is the most reactive _________.

group 7A is the most reactive _________