the atomic number: The number of protons in the nucleus of an atom determines an element's atomic number. In other words, each element has a unique number that identifies how many protons are in one atom of that element. For example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1. All carbon atoms, and only carbon atoms, contain six protons and have an atomic number of 6. Oxygen atoms contain 8 protons and have an atomic number of 8. The atomic number of an element never changes, meaning that the number of protons in the nucleus of every atom in an element is always the same.
the Atomic Mass: it's the sum of neutrons and protons electrons in a single atom.
to sum it up the atomic number is the number of protons and the mass number is the total number of every thing in an atom!
The atomic number is the number of a chemical element in the Periodic Table of Mendeleev; it is equal to the number of protons and electrons.
The atomic mass is the mass of an isotope atom expressed in 1/12 from the atomic mass of the isotope 12C (atomic mass unit).
Atomic number is the number of protons in the nucleus of an atom of a given element. Each element has its own unique atomic number. The number of protons defines an element. On the periodic table, the elements are arranged in increasing order of atomic number. Atomic mass is the mass of all of the electrons, protons, and neutrons in a given isotope of an atom and is expressed in atomic mass units, amu .
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass (divide by one mole for units to cancel). So if you have just 1 mole, the number of grams will be the atomic mass. Helium's atomic mass is 4.003 grams.
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass. So if you have just 1 mole, the number of grams will be the atomic mass. Nitrogen's atomic mass is 14.007 grams.
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
83.98 amu is the Atomic Mass, 36 is the atomic number.
atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons
AMU stands for atomic mass units; the number of units an element has is called its atomic mass. The atomic mass of carbon is exactly 12, by definition.
The number of protons in an atom of any atomic number is the same as the atomic number, because that is the definition of atomic number. Therefore, in the given question, the answer is 34; the mass number is not needed to answer.
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass (divide by one mole for units to cancel). So if you have just 1 mole, the number of grams will be the atomic mass. Helium's atomic mass is 4.003 grams.
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass. So if you have just 1 mole, the number of grams will be the atomic mass. Nitrogen's atomic mass is 14.007 grams.
12. The number 12 refers to the atomic mass. More precisely, to the sum of neutrons + protons; but this is usually close to the atomic mass. In the case of carbon-12, it is exact, by definition.
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass. So if you have just 1 mole, the number of grams will be the atomic mass. Selenium's atomic mass is 78.96 grams.
We can find Atomic Mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
83.98 amu is the Atomic Mass, 36 is the atomic number.
The atomic number is the number of a chemical element in the periodic table of Mendeleev; the atomic number is equal to the number of protons and electrons. The atomic mass is the mass of an atom expressed in relative atomic mass units.
atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons