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The mass number is the average total of the number of protons and neutrons in the atomic nuclei of all the isotopes of that element on earth. Thus, the average number of neutrons in that element can be found by subtracting the atomic number from the mass number.
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The nucleus makes up 99 percent of the atoms what?
mass
What particle makes up an atoms atomic mass?
the particle that is represent in the mass number is/ sum equals, protons and neutrons.
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
What makes up nearly all of the atoms's mass?
The sum of all Protons and Neutrons.
Which of these makes up an atom's mass number?
The mass number is the sum of the protons and neutrons in the atomic nucleus.
What is mass proportional to the number that makes up an object?
atoms
What makes up the mass in a chemical reaction?
The atoms.
What thing makes up matter?
Mass and atoms
The nucleus makes up 99 percent of the atoms what?
mass
What particle makes up an atoms atomic mass?
the particle that is represent in the mass number is/ sum equals, protons and neutrons.
What makes up of the atoms?
The nucleus makes up most of the mass and the other things in the atom make up the rest.
How can Atoms vary?
Atoms and elements can vary in many ways. Atoms mainly vary by having different numbers of protons, electrons, and neutrons. The count of protons makes up an elements mass number.
What makes up the mass of atoms?
Protons and neutrons are the primary contributors to an atom's mass. Electrons make up an insignificant amount of mass. Atomic mass is determined by adding the number of protons and neutrons in a nucleus.
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
How many atoms of the element makes up molar mass?
The molar mass is the sum of the atomic weights of atoms contained in the molecule.
What makes up nearly all of the atoms's mass?
The sum of all Protons and Neutrons.
What is the relationship between mass number and atomic numbers?
Atomic number is the number of protons in the nuclei of the atoms of an element. Each element has a unique atomic number. Mass number is the number of protons and neutrons in the nuclei of the atoms of a specific isotope of an element.
