Aluminium and Arsenic.
Neon is in row 2 of the periodic table of elements.
2 elements
Only 2 elements of the 126 elements in the periodic table are liquid.
Water is a COMPOUND of two(2) elements, viz. Hydrogen(H) and Oxygen(O). These tqo elements are both found in the Periodic Table. The Periodic Table is a list of ELEMENTS, not compounds.
Elements from the group 2 of the periodic table form cations.
Periodic table consists of elements not cations. However group 1 and group 2 elements (left side of the periodic table) are elements which will form cations easily.
Helium (He) is the element that is number 2 on the Periodic Table of Elements. It has an atomic number of 2 and is a noble gas.
including "unknown elements" there are 59 elements in half of the periodic table, not including them there is 55.5 Added: 92 natural elements/2 = 46 natural elements make up 1/2 periodic table.
In the Periodic Table of Elements there are: 118 Observed Elements 114 Officially Discovered Elements 112 Officially named Elements 92 Naturally Occuring Elements 83 Non-radioactive elements
On the left of the periodic table, especially group 1 and group 2 elements.
Group 4 elements on the periodic table contain no period 2 elements whatsoever.
About 2/3 of the Periodic Table of Elements is made up of Metals.