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What particles make up the mass of an atom?
The number of protons
Do protons and neutrons contain all of an atom's mass?
Excepting the mass of electrons (but this mass is very small)
What does nuclei contain?
Nuclei contain protons (positively charged particles) and neutrons (no charge). numbers of neutrons and protons makes up mass of atom.
How many protons does an atom with the atomic number 50 and mass number of 125 contain?
An atom with atomic number 50 contains 50 protons. The mass number of 125 indicates the total number of protons and neutrons combined, so subtracting the number of protons (50) from the mass number gives 75 neutrons.
Why does the nucleus contain most of the atom total mass?
This is because the mass of electron is without importance compared to the mass of protons and neutrons.
What is the mass number if an atom has 3 protons and 4 neutrons?
seven
What is The atomic mass of an element whose atoms consist of seven protons eight neutrons and seven electrons?
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus of an atom. In this case, the element has 7 protons and 8 neutrons, so the atomic mass would be 7 + 8 = 15 atomic mass units.
If the atomic mass of an atom is 48 and the atom contains 20 protons how many neutrons does the atom contain?
If the atomic mass of the atom is 48 and it contains 20 protons, then the atom contains 28 neutrons. This can be calculated by subtracting the number of protons from the atomic mass, since the atomic mass includes both protons and neutrons.
What is the difference between a substance's atomic number and it's atomic mass?
Atomic number defines as how many nmbr of electrons and protons d atom contain. No. of electron=No. of protons=Atomic Nmbr. Atomic mass defines d mass of total protons and neutrons(mass of nucleus) of an atom.
Do Protons Have Weight?
Yes, protons have mass, which is a measure of the amount of matter they contain. Weight, on the other hand, is a measure of the force exerted on an object due to gravity. Because protons have mass, they also have weight when they are subject to gravity.
All atoms of an element with atomic number 38 and mass number 88 contain?
All atoms of the specified data contain 38 protons, 38 electrons (assuming they are not ions), and 50 neutrons. They are atoms of the element Strontium.
How many protons and neutrons does gold 198 contain?
The radioactive isotope 198Au has the mass number 198.
