A geometric arrangement of the points in space at which the atoms, molecules, or ions of acrystal occur. Also called <span>space lattice</span><span>. Hope this helps</span>
Answer:
Coal
Explanation:
Once it's all been mined, there's no more. It's not like we grow it.
Krypton is the only element that begins with the letter K.
Answer:
All atoms of the same element have always have the same amount of protons.
Explanation:
Atoms of the same element have always have the same amount of protons but not always the same electrons and neutrons. If an atom gains or loses one of its valance electrons, the electrons on the outermost shell, then it becomes ionized. Also not all atoms of the same element have the same amount of neutron. This is called an isotope. A good example would be Carbon 13. Normally, Carbon atoms have an atomic mass of 12 AMU or 12 atomic mass units. However, Carbon atoms have an atomic mass of 13 AMU, consisting of 7 neutrons instead of 6 neutrons. So the only thing that all atoms of the same element have in common is the amount of protons.