most often it is silicon, the semiconductor
Nickel is an element. It is a chemical element with the symbol Ni and atomic number 28. It is a hard, silvery-white metal.
The densest element on Earth that matches your description is osmium. Osmium is a rare, extremely hard, bluish-white transition metal. It is the densest naturally occurring element.
they are very far away
Carbon has two allotropic forms called diamond and graphite. Diamond is a hard, transparent crystal structure, while graphite is a soft, dark crystal structure known for its lubricating properties.
Feldspar
Yes but it's hard to say
silver
The key element is calcium.
Silicon is a chemical element with symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre. It is a semiconductor, widely used in electronics and solar technology.
Solar Energy can be found by going outside, capturing it is the hard part. Solar panels are the most efficient way of going about this. Panels can be expensive and hard to buy, but very easy to find. If we could capture all of the suns energy through solar panels, we would NEVER run out of electricity!
Oxygen is a non-metal element, so it is considered a "hard" element. In chemistry, "hardness" generally refers to the ability of an element to form bonds with other elements. Oxygen typically forms strong covalent bonds with other elements, contributing to its classification as a "hard" element.
The main element from the periodic table used to make a solar cell is silicon. A simple solar cell consists of a sandwich of a 'silicon-boron' layer and a 'silicon-arsenic' layer. The amount of boron and arsenic present is however very small.
This is Boron
There are also thin-film solar panels that can be rolled onto roof surfaces, but they are not as efficient.
Nickel is an element. It is a chemical element with the symbol Ni and atomic number 28. It is a hard, silvery-white metal.
Yes but not at much high level
It is not an element... for hard water usually a build up calcium compounds.