1st period.
it has two element (hydrogen and helium) that are both gases although they are metallic and have a luster like tony baloney
''Mercury (shortest),''Neptune (longest)
Mercury has the shortest period of revolution around the Sun, at approximately 88 Earth days.
The smallest class of the periodic table would be the semi-metals, or metalloids. The second biggest group would be the nonmetals. The largest group would be the metals.
The planet that has the shortest period of revolution is Mercury, which is 88 days. The planet with the longest revolution is Neptune, which is 165 years. Earth's revolution is the third shortest.
The element with the shortest name on the periodic table is Tin, with the chemical symbol "Sn".
Jupiter has the shortest period of revolution among the gas giants, with a revolution period of about 11.86 Earth years.
the metals
Helium is in the first period of the periodic table.
No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
The inner planet with the shortest period of revolution is Mercury, which orbits the sun once every 88 Earth days.
The control zone that a responder should limit his shortest entry period to is the collapse zone.