It is located at the center of the atom

He organized elements in the periodic table in a unique order

contains two non-metals

MgCl2

Valence electrons

positively charged particle found inside the nucleus

This element has eight electrons in its outermost orbit and is used in street lights

Al3N2

The fizz in coke is due to this compound

electrons move around the nucleus in this path

neutral particle of an atom

The group that fits neatly onto the end of the table, the are unwilling to mix with the other elements, to react with them.

The active ingredient in TUMS

A compound formed when magnesium loses two electrons and oxygen gains 2 electrons

sum of protons and neutrons in an atom

two electrons in first orbit, 8 electrons in second orbit, 2 electrons in third orbit

Each of elements in this group has full shell, plus one extra electron sitting in a outer shell.

MgCO3

is poisonous compound and is formed when carbon combines with oxygen

is equal to the number of protons in an element

has 5 valence electrons and 15 protons,

has 13 protons, 10 electrons and has a positive charge.

rare earth metal that repels sharks?

6 protons 6 electrons 7 neutrons.. used to find the age of fossil fuels?

same number of protons, but different number of neutrons