0
What is the approximate atomic mass of an atom if its mass is 12 times that of carbon-12?
The mass of an atom of C12 is exactly 12 Atomic Mass units by definition. In other words, the precise value of Mu was chosen by the scientific community to make C12 weigh 12 Mu.
The exact mass (in grams) of 1 Mu is 1/NA where NA is Avogadro's number. That means that the mass of 1 atom of C12 weighs 12/NA grams. Since NA ~=6 X 10 23
1 atom of C12 weighs 12/(6 x 1023 ) grams, or ~= 2 x 10-23 gm.
What else can I help you with?
Why is the atomic mass scale also called the relative atomic mass scale?
All atomic masses are determined by comparing them to the mass of an atom of carbon12. One atomic mass unit equals one twelfth the mass of an atom of carbon12. That's why its called relativeatomic mass.
What is the approximate mass of an oxygen atom in atomic mass units?
The approximate mass of an oxygen atom in atomic mass units is 16. Oxygen has an atomic number of 8, which means that its atomic mass is approximately 16 atomic mass units.
When calculating an atomic approximate mass how is the mass of electron figured?
When calculating the atomic mass of an atom, the mass of an electron is typically considered negligible. This is because the mass of an electron is almost 2000 times smaller than the mass of a proton or neutron, which are the primary components used in determining the atomic mass of an atom.
How many times heavier is a copper atom compared to an oxygen atom?
A copper atom is about 63 times heavier than an oxygen atom. This is because copper has an atomic number of 29 and oxygen has an atomic number of 8, meaning that a copper atom has approximately 63 times more protons and neutrons in its nucleus than an oxygen atom.
What is the approximate mass of a neon-11 atom?
The approximate mass is 11. Technically you could express this in units of daltons as 11 Da (Daltons previously called amu, atomic mass unit, or as 11 (the dimensionless, relative atomic mass which chemists simply call atomic weight) .
What is the approximate mass of an oxygen atom in atomic mass units?
The approximate mass of an oxygen atom in atomic mass units is 16. Oxygen has an atomic number of 8, which means that its atomic mass is approximately 16 atomic mass units.
Why is the atomic mass scale also called the relative atomic mass scale?
All atomic masses are determined by comparing them to the mass of an atom of carbon12. One atomic mass unit equals one twelfth the mass of an atom of carbon12. That's why its called relativeatomic mass.
The approximate mass of the hydrogen atom?
The conventional standard atomic weight of the hydrogen atom is 1,008 amu.
What is the Mass number of a bromine atom?
Bromine has an approximate atomic mass of 79.904.
When calculating an atomic approximate mass how is the mass of electron figured?
When calculating the atomic mass of an atom, the mass of an electron is typically considered negligible. This is because the mass of an electron is almost 2000 times smaller than the mass of a proton or neutron, which are the primary components used in determining the atomic mass of an atom.
An unknown atom has 26 neutrons and an approximate atomic mass of 48 amu. What is the name of this element?
This element has 26 neutrons, so its atomic number would be 26. Given an approximate atomic mass of 48 amu, this corresponds to the element iron (Fe).
How many times heavier is a copper atom compared to an oxygen atom?
A copper atom is about 63 times heavier than an oxygen atom. This is because copper has an atomic number of 29 and oxygen has an atomic number of 8, meaning that a copper atom has approximately 63 times more protons and neutrons in its nucleus than an oxygen atom.
What is the size of sodium atom?
The approximate size of a sodium atom is about 0.186 nanometers (nm) in radius. Sodium is a relatively large atom compared to hydrogen or helium because it has more electrons and protons, leading to a larger atomic radius.
How many times heavier is a magnesium atom than an oxygen atom?
O = 16.00 a.m.u (atomic mass units) Mg = 24.31 a.m.u So, relatively speaking it is 1.519 times heavier
What are the atomic numbers and atomic mass?
Atomic Number :- atomic number of an element is the number of protons present in the nucleus of the atom. (since atoms are electrically neutral the number of protons in an atom is equal to the number of electrons in an atom) Atomic Mass :- atomic mass of an element is the number which tells us how many times an atom of that element is heavier than an atom of hydrogen (whose atomic weight is taken as unity [1])
An unknown atom has 26 neutrons and an approximate atomic mass of 48 What is the name of this element?
That has an atomic mass of (45 + 56), or 101.
What is the approximate mass of a neon-11 atom?
The approximate mass is 11. Technically you could express this in units of daltons as 11 Da (Daltons previously called amu, atomic mass unit, or as 11 (the dimensionless, relative atomic mass which chemists simply call atomic weight) .
