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The chemical element with 20 protons and 20 neutrons is Calcium(Ca). The number of protons is equal to the number of electrons, and the number of electrons is equal to the atomic number.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoThe 20th element of the Periodic Table contains 20 neutrons and 20 electrons (also 20 protons). This element is named Calcium, or Ca for short.
Wiki User
∙ 14y agoIt is sodium ion which exists in common salt.
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Which of the has an electric charge?
(a) a sodium atom with 11 protons, 11 electrons, and 12 neutrons (b) a calcium atom with 20 protons, 18 electrons, and 20 neutrons (c) a helium atom with 2 protons, 2 electrons, and 2 neutrons (d) an iron atom with 26 protons, 26 electrons, and 30 neutrons
How many valence electrons does gold have?
The number of electrons in a neutral atom of any element is the same as the number of protons in the nucleus of the atom. The number of protons in an element is the same as the atomic number for that element. In the case of Gold (Au) the atomic number is 79.
How many protons and neutrons are in chlorine and sodium'?
The number of protons and neutrons is not changed; sodium lose one electron and chlorine gain an electron.
When the nucleus boron-10 is bombarded with neutrons it absorbs a neutron and then emits an alpha particle How many protons does the resulting nucleus have?
If boron-10 absorbs a neutron, it becomes boron-11. Boron-11 is stable and does not emit any particles. Please restate the question.
Why do scientists say that mostt of the mass of an atom is located in the nucleus?
The masses of protons and neutrons are on the order of 1x10-27 kg. The mass of an electron is on the order of 1x10-30 kg. So protons and neutrons, the particles found in a nucleus, weigh around 1000 times as much as the electrons outside the nucleus. So take helium-4 for example: 2 protons, 2 neutrons, and 2 electrons. Its nucleus is around 2000 times more massive than its two electrons. The term "concentrated" is also worth noting. Atoms are much, much, much bigger than their nuclei. A good analogy I often use for this is that if you put a penny in the middle of Giant's stadium, the atom would be the size of the stadium and the penny would be the size of a nucleus. A more specific example would be that the nucleus of a carbon atom has a radius of around 2x10-15 m, and the radius of a carbon atom is around 8x10-11 m. So the nucleus is 40,000 times smaller than the atom.
How many protons neutrons and electrons would an atom of neon have?
- The atomic symbol is only an abridged form of the name of a chemical element. - The chemical symbol of neon is Ne; the atomic number is 10. - The atomic number is equal to the number of protons and electrons. - Number of neutrons = Atomic mass of an isotope - Atomic number
How many protons and electrons dose Na plus have?
11 protons and 10 electrons
Does sodium have protons?
Yes, sodium have protons. There are 11 protons and 10 electrons
An atom has 11 protons 13 neutrons and 11 electrons What are possible isotopes of this atom?
An atom with 11 protons, 12 neutrons, and 11 electrons. B. An atom with 11 protons, 10 neutrons, and 11 electrons.An atom with 11 protons, 12 neutrons, and 11 electrons.
What has 11 protons 12 neutrons and 10 electrons?
none because the number of protons and electrons have to be the same.
How does an atom of sodium has a larger mass than a atom of neon. how is this possible when neon has so many more valence electrons?
sodium has more protons and neutrons. electrons have practically no mass, valence electrons are just outer orbital electrons. sodium has 11 protons, 11 electrons, and 12 neutrons. Mass is 23. neon has 10 protons, 10 electrons, and 10 neutrons. Mass is just 20. The neon atom has 10 protons and 10 neutrons for a mass number of 20. The sodium atom has 11 protons and 12 neutrons for a mass number of 23. The number of valence electrons has no bearing on mass number or atomic weight.
How many protons electrons does sodium have?
The atomic number of sodium is 11 which means it has 11 protons and 11 electrons.
What is the symbol for sodium with 11 protons and 10 electrons?
n^+ ?
What is the chemical symbol for an element whose atoms have 11 electrons?
For an neutral element that has the same number of electrons and protons, the element with 11 electrons is Na, sodium.
Protons neutrons electrons in boron?
Boron 10: 5 protons, 5 neutrons, 5 electrons Boron 11: 5 protons, 6 neutrons, 5 electrons
A sodium ion has 11 protons and 10 electrons what is its charge?
+1
How many protons and neutrons and electrons does the ion Na 1?
Na+ sodium ion has 11 protons, 12 neutrons and 10 electrons
