Numbers should only ever be rounded when a number of significant figures are expressly requested. In this case you would simply leave it as 79.904. However, if you were asked to round 79.904 to two significant figures then the correct answer would be 80 to 2 s.f. Note that you must explicitly specify the significance of the trailing zero otherwise it implies an unwanted level of precision.
Bromine is a non metal element. Atomic mass of it is 80.
There isn't one, but there is an element with the atomic mass of 200.59 and that is Hg for mercury with an atomic of 80.
A-N=Z Mass number - Number of neutrons= Atomic number mass number = 80, number of neutrons = 41; 80-41=39 Atomic number for the element with mass number 80 and 41 neutrons; is 39.
Bromine is a non meta element. Atomic mass of it is 80.
There are 120 neutrons in 202Hg. Mercury-202 has an atomic number of 80, which means it has 80 protons. Neutrons can be calculated by subtracting the atomic number from the atomic mass.
the number 80 and the mass is 200.592
Bromine is a non metal element. Atomic mass of it is 80.
There isn't one, but there is an element with the atomic mass of 200.59 and that is Hg for mercury with an atomic of 80.
Bromine is a non meta element. Atomic mass of it is 80.
the 80 in Bromine-80 represents the rounded atomic mass (amu)
A-N=Z Mass number - Number of neutrons= Atomic number mass number = 80, number of neutrons = 41; 80-41=39 Atomic number for the element with mass number 80 and 41 neutrons; is 39.
Bromine is a non meta element. Atomic mass of it is 80.
Bromine has an approximate atomic mass of 79.904.
The mass number is the som of protons and neutrons in the atomic nucleus of a chemical element. Each isotope has a different mass number. For natural isotopes of bromine the mass numbers are 79 and 81.
no of electrons in any atom is equal to the atomic number of that element so no of electron is 80
There are 120 neutrons in 202Hg. Mercury-202 has an atomic number of 80, which means it has 80 protons. Neutrons can be calculated by subtracting the atomic number from the atomic mass.
A mercury has an atomic mass of 200.59 and it has 80 protons and electrons