heliums period address is 11.09
The Heliums period is a explosive force of matter which produces nano bits of helium. The shockwave contributes to events here on Earth. Scientists are still trying to decode the main details.
liquid, and gas.
Helium is an odorless gas.
gaseous state.
Helium's chemical symbol is He.
-268.93 °C
helium is a colourless odourless gas
Helium is a gas at room temperature.
The period address of hydrogen is 1, as it is located in the first period of the periodic table.
Do you put a period after a stated when it is abbreviated in an address?
Aluminium is in third period
helium has only one energy level (with 2 electrons in it).