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Helium has 2 protons, 2 neutrons, and 2 electrons.
Elza Olson
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How many electrons must a neutral atom of helium posses?
helium has two electrons and has a charge of -2 for these electrons. However there are 2 protons in the nucleus and helium element as a whole is neutral.
What element is found on period 4 and has 7 valence electrons?
Only nitrogen (but in the period 2) has 7 electrons in the neutral atom.
What is the number of electrons present in a neutral atom of each element 1 copper 2 chlorine?
Copper has 29 electrons.Chlorine has 17 electrons.
How many electrons are in a beryllium ion?
The beryllium atom has 4 electrons. As with all other elements, Beryllium atoms are most stable when they have a full outer shell of electrons. Since the neutral electron configuration of the beryllium element atom is 1s2 2s2 (total of 4 electrons) the atom either needs to pick up another six electrons, thereby becoming 1s2 2s2 2p6, or lose two electrons to become 1s2.
How many electrons on chromium?
24, considering that an electron has a negative charge and the number of protons (positivley charged) is 24, an atom has to be neutrally charged
How many electrons must a neutral atom of helium posses?
helium has two electrons and has a charge of -2 for these electrons. However there are 2 protons in the nucleus and helium element as a whole is neutral.
How many electrons are in an oxygen atom when it hase 2 eltron shell and 6 covalent atom?
A neutral oxygen atom has eight electrons, two in the first energy level, and six in the second energy level, which are the valence (not covalent) electrons. You can tell how many electrons a neutral atom has by looking at that element's atomic number. The atomic number is the number of protons in the nuclei of the atoms of that element. In a neutral atom the numbers of protons and electrons are equal. So the element oxygen has the atomic number 8, and in a neutral oxygen atom, there will be 8 protons and 8 electrons.
What is the number of electrons in a neutral atom of an element always equal 2?
2. Cause the only element that can "always equal 2" is Helium. And helium has 2 electrons. Number of protons=number of electrons.
What element is found on period 4 and has 7 valence electrons?
Only nitrogen (but in the period 2) has 7 electrons in the neutral atom.
What is the number of electrons present in a neutral atom of each element 1 copper 2 chlorine?
Copper has 29 electrons.Chlorine has 17 electrons.
Identify the element whose electrically neutral atom has 2 energy levels with 2 electrons in the outer energy level?
beryllium
How many electrons does a neutral hydrogen atom have?
Hydrogen is a non metal element. There are 1 electrons in a single atom.
How may electrons does helium have?
A neutral atom of helium has 2 electrons.
How many electrons are in a neutral bromine atom?
There are 35 electrons in a neutral boron atom arranged in the order 2, 8, 18, 7.
How many electrons are in a beryllium ion?
The beryllium atom has 4 electrons. As with all other elements, Beryllium atoms are most stable when they have a full outer shell of electrons. Since the neutral electron configuration of the beryllium element atom is 1s2 2s2 (total of 4 electrons) the atom either needs to pick up another six electrons, thereby becoming 1s2 2s2 2p6, or lose two electrons to become 1s2.
How many electrons does an ion of beryllium have if it has a -2 charge?
Beryllium is element 4, so the "neutral" atom would have 4 protons and 4 electrons. In order to have a "-2" charge, it would need 6 electrons.
Why is any atom neutral?
The atom has the same number of electrons as protons. electrons are negatively charged, and protons are positively charged. So for example in a Helium atom, it has 2 protons and 2 electrons, so the sub-particles cancel out, making the atom neutral.
