Element Symbols
Al
What is aluminum
H
What is hydrogen
13
What is aluminum
Group 1
What is alkali metals
drew the first periodic table
What is Dimitry Mendeleyev
Mg
What is magnesium
O
What is oxygen
29
What is copper
Group 2
What is alkaline earth metals
The way the periodic table is organized
What is by the atomic number
Au
What is gold
Ag
What is silver
6
What is carbon
Group 17
What are halogens
These are equal when elements are neutral
Protons and electrons
U
What is uranium
Zn
What is zinc
53
What is iodine
Groups 3-12
What are transition metals
What are periods and groups
Pb
What is lead
Hg
What is mercury
15
What is phosphorus
Group 18
What are noble gases
The staircase represents this and elements along staircase are called these
What is seperation of metals and nonmetals with metalloids along the staircase