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The Atomic Number of an element is the number of Protons in its nucleus, that is what determines what element the atom is. The Atomic Mass is the total mass of Protons, Neutrons, and (negligable) Electrons, but that means the Atomic Mass will be larger than the Atomic Number.
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∙ 14y ago
Wiki User
∙ 12y agoAtomic number is the number of protons in the nucleus. The mass number is bigger, because it is telling you the number of protons and neutrons in the nucleus. These numbers are telling you what is in the nucleus.
The atomic mass is the average mass of all the naturaly occurring isotopes of an element. This number is the mass in grams of a mole of the element!
Wiki User
∙ 14y agoExcept for hydrogen-1, the mass number is always larger than the atomic number, because all other nuclei contain protons, which add to the mass number but not to the atomic number.
Wiki User
∙ 11y agoMass number. this is at least equal to the atomic number as in hydrogen-one. In all other elements there are neutrons in all of their isotopes.
Wiki User
∙ 7y agoThe atomic number counts only the protons while the atomic mass includes both protons and neutrons - consequently the atomic mass will nearly always be bigger than the atomic number.
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If there is a difference between a substance's atomic number and its atomic mass and which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
Why does tellirium has a larger mass number than iodine?
Iodine is a non metal element. Atomic mass number of it is 127.
The number shown on the top part of each of the element squares in a periodic table is the?
This depends on the periodic table but it is either the atomic number (the number of protons) or the atomic mass (the number of protons and neutrons). The integer number will be the atomic number and the larger number will be the atomic mass. The exception is hydrogen which has an atomic number of 1 and an atomic mass of 1 (very close to it).
What is the difference between mass number atomic mass and atomic number?
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.
What is the atomic mass number of krypton?
83.98 amu is the Atomic Mass, 36 is the atomic number.
If there is a difference between a substance atomic number and its atomic mass which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
If there is a difference between a substance's atomic number and its atomic mass and which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
Where is the atomic number?
In the atoms on the periodic table the atomic number is the smaller of the two numbers, the other larger number is the mass umber
Is the atomic number the largest the two numbers shown in the periodic table?
No, the relative atomic mass is the larger.
Why does tellirium has a larger mass number than iodine?
Iodine is a non metal element. Atomic mass number of it is 127.
The number shown on the top part of each of the element squares in a periodic table is the?
This depends on the periodic table but it is either the atomic number (the number of protons) or the atomic mass (the number of protons and neutrons). The integer number will be the atomic number and the larger number will be the atomic mass. The exception is hydrogen which has an atomic number of 1 and an atomic mass of 1 (very close to it).
The number of an element determines its?
it depends which number you are referring to. in the periodic table, the numbers referr to number of protons and then relative atomic mass. the larger number is relative atomic mass and the smaller number is the number of protons for example, chlorine, has a relative atomic mass of 35.5 and a proton number of 17
What is the difference between the atomic number mass number and atomic mass?
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.
What is the difference between mass number atomic mass and atomic number?
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.
What is the atomic mass number of krypton?
83.98 amu is the Atomic Mass, 36 is the atomic number.
What do you do with an atomic number and an atomic mass?
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.
Can you use the atomic number and atomic mass to calculate the number of each subatomic particle?
atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons
