Liquid hydrogen is the coldest substance known to man, minus 400 degrees
Helium.
Beryllium (Be) - 9.012
The element with the lowest average atomic mass is hydrogen (H) at 1.008 grams. The element with the highest is meitnerium (Mt) at 266 grams.
W on the periodic table. the element with the highest melting/boiling point is tungsten.
The first three element of the Periodic Table of Elements have the lowest density. They are Hydrogen, Helium and Lithium.
The lightest element in the group 2 of the periodic table of elements is calcium - with a density of 1,55 g/cm3.
Helium.
-27C
Beryllium (Be) - 9.012
The last member of alkali metals the Francium.
The temperature in Antarctica has reached −89 °C (−129 °F).
Cesium (Cs)
The temperature in Antarctica has reached −89 °C (−129 °F).
The element with the lowest average atomic mass is hydrogen (H) at 1.008 grams. The element with the highest is meitnerium (Mt) at 266 grams.
W on the periodic table. the element with the highest melting/boiling point is tungsten.
Vinidium (V) atomic number 23 is the lowest electropositive element in this group.
The first three element of the Periodic Table of Elements have the lowest density. They are Hydrogen, Helium and Lithium.
Hydrogen is the element with the lowest density. With the atomic mass of the H atom being 1, the molecular mass of hydrogen gas, H2 is 2. This molar mass is lower than any other element in the periodic table.