Some of the required elements required by the human body include oxygen, and trace minerals such as; iron, potassium, magnesium, calcium, and many others.
chromium
C, N, O, H but also Fe to make Hemoglobin and many other trace elements required for life.
name and give the symbol of 2 radio active elements
Who, what, when, where, how.
Technically, any elements less massive than iron can fuse together; however, practically it is easier to fuse the lightest elements (Hydrogen, Helium...), which also give higher energy yields. Any elements which are heavier than iron (or are iron) will not fuse, and instead decay via nuclear fission.
The vassals required to give their king land. They could also give the king food, water and a sword.
I believe you are asking "what are the five elements". The five elements are wood, fire, earth, metal, and water.
Macronutrients
Calcium phosphorus
everything in the world is made up of elements. your made up of elements and so am i. without elements, there would be nothing.
give the total subset of set with 9 elements
Metals give electrons.