periodic table
who created the periodic table
Dmitri Mendeleev
what is the structure of an atom?
Protons and Neutrons
Nucleus
Electrons
what is the 6th element on the periodic table
carbon
what side left or right of the periodic table are metals
left
how many elements are on the periodic table
92/118
what is an molecule
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
what is the 20th element on the periodic table?
calcium
what is Ar the symbols of
argon
how many groups and columns in the periodic table
18 groups and 7 columns
The atomic number of an atom is the total number of_______in the nucleus
protons
what are the 26th elements in the periodic table
Iron(fe)
neutrons are negative charge (true or false )
False