by using periodic table first we use to saw its atomic no. as
the atomic number is the electron no. for example we have an
element NEON;20 is the atomic mass and 10 is the atomic no. of neon
so that's 10 is the electron no. of neon.
Atomic mass is measured in a unit called an "atomic mass unit".
This unit is defined as 1/12 of the mass of a carbon-12 atom at
An atomic mass unit is approximately 1.66053886 x 10-27 kg.
Atomic mass is measured in atomic mass units (amu) and
There are 10 neutron in a neon atom. We just leaned this in my
class. The atomic number is 10 so there are 10 protons and 10
electrons. You subtract the atomic number from the atomic mass:
20-10=10. There are 10 neutrons.