Each atom of protium has one proton, no neutrons, and one electron. each atom of deuterium has one proton, two neutrons, and one electron. are these the same or different elements? why? asap you guys!

These are the same element.  

Explanation:

H = 1p + 1e

D = 1p + 1e + 1n

Protium (H) and deuterium (D) are isotopes of the same element (H).

If two atoms have the same number of protons, they are the same element.

If they have the same number of protons but different numbers of neutrons, they are isotopes.

clouds form

solid ice forms on leaves.

water droplets form on grass.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.