The chemical symbol for the element calcium is ca what would be the symbol representing calcium atoms that have lost two electrons?
is it ca^+2

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3