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How many electrons are in the nucleus of an atom with an atomic number of 20?
Wiki User
∙ 7y ago
None. Electrons are found in energy levels outside the nucleus, not in it. An atomic number of 20 tells you there are 20 protons in the nucleus of an atom, and 20 electrons in energy levels (or shells or orbitals depending on which model of the atom you are using) outside the nucleus.
Wiki User
∙ 7y ago
Wiki User
∙ 16y agoThe number of protons is the same as the number of electrons
Wiki User
∙ 15y agoI think you subtract the Atomic Mass from the electrons to get 10? Maybe you add 10 and10????
Wiki User
∙ 14y agoUnder static conditions, you will have 20 electrons.
Wiki User
∙ 7y ago20 (unless ionized).
Wiki User
∙ 11y ago63929438
Wiki User
∙ 13y agocalcium
Wiki User
∙ 13y ago20 protons
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What does the atomic number tell you about the atomic structure of any element?
An atom contains Protons, Neutrons and Electrons the atomic number is the protons and neutrons combined, the number of protons in the atom is equal to the total number of electrons in the atom which are aranged in the outer shells at 2,8,8,8,8 and so on to find the totoal number of protons in the neucleus of the atom you take the atomic mass and minus the atomic number from it. so He or Helium is 4.0026 atomic mass and 2 for atomic number and so has 2 protons and so in turn has 2 electrons.
What does the atomic number tells you?
The atomic number tells you how many protons and electrons are in a specific element.Atomic number tells us about protons. Number of protons that atom contains.
What is an atomic number equal to?
The atomic number is the number of positive protons present in the nucleus of an atom.
How many electrons is there in boron if there is a atomic number or 5 and atomic mass of 11?
All you need is the atomic number, which gives the number of protons, in this case, 5. In any neutral atom the number of electrons is the same as the number of protons. So any neutral boron atom will have 5 electrons.
What part of the atom orbits the nucleus?
electrons are negatively charged sub atomic particles which surround the nucleus and never leave their orbit unless and until they are excited by a photon(packet of light)
Are the number of electrons in the nucleus of an atom that element's atomic number?
There are no electrons in the nucleus of an atom, the electrons are in the orbitals around and outside the nucleus.There are no electrons in the nucleus of an atom, the electrons are in the orbitals outside and around the nucleus.
The protons in the nucleus of an atom is called the?
the no. of protons or the no.of electrons inthe nucleus ofan atom is called the atomic number of that atom.
What is the atomic number of an atomic indicate?
Atomic number of an atom shows the number of protons in the nucleus of the atom. OR Atomic number of an atom is the number of electrons in the atom when the atom neutrally charged
What gives an element it's atomic number?
Atomic number is the number of protons (i.e. equal to the number of electrons) of an atom.
Atomic number equals the number of?
The atomic number is equal to the number of protons in the nucleus and in a neutral atom will also equal the number of electrons.
The atomic number is the number of what in the nucleus?
It is the number of protons and electrons in an atom
What does the atomic number describe about an atom?
The number of protons in the nucleus of an atom
What does the atomic number of an atom reveal the number of?
it tells you the amount of electrons the atom has orbitting the atom and the nucleus
The atomic number of an atom indicates the number of?
The atomic number is the number of protons in the atom. In the case of a neutral atom (as opposed to an ion), the atomic number is also equal to the total number of electrons.
How many electrons orbit the nucleus if the atom has no charge?
If the atom has no charge, then the number of electrons is the same as the number of protons (atomic number).
What is the difference of atomic number and atomic mass?
atomic number is the number of protons in the nucleus or electrons around the nucleus in an atom that is not ionized. atomic mass is the sum of the number of protons and the number of neutrons in the nucleus.
How many electrons are in the nucleus of an atom with the atomic number of 20?
None. Electrons are found in energy levels outside the nucleus, not in it. An atomic number of 20 tells you there are 20 protons in the nucleus of an atom, and 20 electrons in energy levels (or shells or orbitals depending on which model of the atom you are using) outside the nucleus.
