How much an atom weight?

Question

How much an atom weight?

Answer 1

That depends on the element, but they weigh almost nothing. They are measured with an Atomic Mass Number or Relative Atomic Mass (RAM).

Answer 2

Which atom?

Every element has a different weight, starting with the lightest, hydrogen, and continuing right through the heavy metals, some 250 times heavier.

Answer 3

well an atom's weight is decided by the fact that how many protons and neutrons and electrons are present in the atom.

an electron weighs 9.108*10^ -31 kg

a proton weighs 1.627*10^ -27 kg &

a neutron weighs 1.675*10^ -27 kg

Answer 4

depends on what the atom is

Answer 5

NEGLIGABLE

Answer 6

I don't know, 3 nano grams maybe

Answer 7

Well, 6.023x10^23 molecules/atoms of hydrogen (which is a lot of molecules/atoms) weighs about 1.008 grams.  So one hydrogen atom would weigh about 6x10^-23 grams.

Answer 8

the weight varies for each atom. which one are you interested in?

Answer 9

Different atoms weigh different amounts.

However, hydrogen H-1 is about 9.3 exp-27kg.

Just multiply the other atoms mass numbers by this to get their weights.