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To determine the mass number of a particular isotope of an element, you need to know the number of protons, which is the atomic number of the element, and the number of neutrons. The sum of protons and neutrons is the mass number.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoIn origin they were calculated from the definition and the weighing of samples of the elements. In modern science, you don't; all values are tabulated
Wiki User
∙ 11y agosince electrons have a very meager weight it is the sum of the proton & the neutron
Wiki User
∙ 8y agoAdd the protons and neutrons together.
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How do you figure neutrons on periodic chart?
by subtracting the atomic number from the mass number. the atomic number is the one under the element's symbol and the mass number is the one above the element's symbol.
How do you tell figure out the atomic mass?
Atomic mass is the number of protons + the number of neutrons in the nucleus of an atom. On the periodic table, the average atomic mass of an element will the be number at the bottom of each box.
What is the difference between the atomic number and the atomic mass?
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
How are the atomic mass and the atomic number different?
the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.
What element has an atomic mass of 32.06?
Sulfur- Element Number 16 on the Periodic Table of Elements
How do you figure neutrons on periodic chart?
by subtracting the atomic number from the mass number. the atomic number is the one under the element's symbol and the mass number is the one above the element's symbol.
How do you tell figure out the atomic mass?
Atomic mass is the number of protons + the number of neutrons in the nucleus of an atom. On the periodic table, the average atomic mass of an element will the be number at the bottom of each box.
How do you figure the number of neutron's in an atom?
Take the Atomic Mass and round it to the nearest whole number. Then subtract this number and the atomic number of that element.
What is the difference between the atomic number and the atomic mass?
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
What is the atomic number and the mass number of an element with 20 atomic number and 23 mass number?
Sodium is a metal element. Atomic mass number of it is 23.
How are atomic mass and atomic number different?
Atomic number is the number of protons in the nuclei of the atoms of an element. Atomic number is unique to each element. Atomic Mass is the combined mass of the protons, neutrons, and electrons in an atom of an element.
How are the atomic mass and the atomic number different?
the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.
The Atomic and mass number for calcium?
Calcium is a metal element. Atomic mass of it is 40.
What is the atomic mass the same as?
The Atomic Mass is equal to the number of protons and electrons that an element has.
Distinguish between the atomic number and mass number of an element?
The atomic number of an element is the number of protons in the nucleus of each atom of the element. Mass number is a property of a particular isotope of the element rather than of the element itself: The mass number is the sum of the numbers of protons and neutrons in the nucleus of each atom of the isotope.
What element has an atomic mass of 32.06?
Sulfur- Element Number 16 on the Periodic Table of Elements
How do you calculate neutrons for elements in the periodic table?
them mass number of an element is the total amount of nuetrons and protons in the element , and the atomic number is the amount of protons ( and electrons) in the element simply subtract the atomic number from the mass number and you'll have the number of neutrons in the element hope this helped x
