0
What else can I help you with?
What number of protons plus neutrons in an atom's nucleus is the atom's .?
The number of protons plus neutrons in an atom's nucleus is called its atomic mass number. This number indicates the total mass of the nucleus and is a key factor in determining the identity of the element, as well as its isotopes. For example, carbon has an atomic mass number of 12, which means it has 6 protons and 6 neutrons.
How do you find the mass number given the proton electrons and atomic number but not the neutrons?
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
The atomic mass is equal to the sum of?
The Atomic Mass number of an element is the sum of the protons and neutrons in the nucleus of an atom of that element.The relative atomic mass is the average atomic mass number of all the known isotopes of an element.
The atomic mass of an atom is determined by the combined masses of its what?
The atomic mass of an atom is determined by the combined masses of its protons, neutrons, and electrons. While electrons contribute very little to the atomic mass, the protons and neutrons, found in the nucleus, account for the majority of an atom's mass.
How is the atomic mass determined?
Atomic Mass is the number of protons in an atom plus the number of neutrons in the same atom.
The number of neutrons plus protons in the nucleus of an atom-?
nass number is the number of neutrons plus protons in the nucleus of an atom
Does the number of neutrons equal the mass number?
no, the mass number is number of protons in an atom, plus the number of neutrons.
How do you determine the atomic mass number of any atom?
protons plus neutrons
What is the number of neutrons plus the number of protons?
The number of neutrons plus the number of protons gives you the approximate atomic mass of an atom in atomic mass units. The actual mass varies due to nuclear energy and the mass-energy equivalence demonstrated by Einstein's E=mc^2.
What is the mass number of a atom?
the mass number is number of protons in an atom, plus the number of neutrons.
How many neutrons does Na plus have?
Sodium typically has 12 neutrons in its most common isotope, sodium-23. When sodium loses an electron to form the Na+ ion, it still has the same number of neutrons due to the neutral nature of neutrons.
How does a helium atom have neutrons in if it is made from hydrogen atoms fusing and hydrogen does not have neutrons?
The weak interaction is capable of converting protons into neutrons plus anti-electrons.
What mass number is calculated by adding the numbers?
the mass number of an atom is the number of protons in an atom, plus the number of neutrons.
What is the number for mass?
the mass number is number of protons in an atom, plus the number of neutrons.
The mass number of an atom indicates the number of what?
The mass number is the sum of protons + neutrons.
What is the mass number of a zinc atom that has 37 neutrons?
The mass number of an atom is the sum of its protons and neutrons. For a zinc atom with 37 neutrons, the mass number would be the number of protons (30 for zinc) plus the number of neutrons (37), which equals 67.
Why does Rb have a greater atomic radius than K?
A potassium atom has 19 protons and 19 electrons, plus 20-22 neutrons. A rubidium atom has 37 protons and 37 electrons, plus 46-50 neutrons and so is bigger.
