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This is a chemical element. You can find the how many electron in a single atom by using a Periodic Table.
What else can I help you with?
How many electrons does an atom of helium have atomic?
Helium atom has 2 electrons.
What would make an atom of 12 protons and electrons a positive two cation?
A cation is a positive ion. To get 2 positive charges the atom would need to lose 2 electrons. As its configuration is 2,8,2, this is what it is likely to do when it reacts as the resulting ion has an inert gas structure.
How many electric charges does atoms of helium have?
An atom of helium has 2 electric charges, which are positive protons in the nucleus and negative electrons surrounding the nucleus.
How many electrons does a neutral atom of helium (He) have?
A neutral atom of helium has 2 electrons.
An atom contains fewer electrons than protons has as negative ionic charge?
Electrons have a negative charge, and protons have a positive charge. If i have more protons(plus charges) than electrons(minus charges) overall the atom will have a positive charge(mabye +1 or +2 etc....depending how many more protons there are compared to electrons) If there are more electrons(minus charges) than protons(plus charges) then overall the atom will have a negative charge(mabye -1 or -2 etc....depending how many more electrons there are compared to protons) These charged atoms are known as ions.
What is the atoms charge if there are more protons than electrons in the atom?
positive!(: more protons = positive more electrons = negative say an atom has 2 more protons than electrons, it has a charge of 2+ if it had 3 more electrons than protons, it has a charge of 3- if electrons are taken away, what will the charge be? answer: positive, because there are less electrons same works vice versa. hope i helped! source: 8th grade science class(:
If an atom loses 2 electrons when it forms an ion what is its ionic charge?
If an atom loses 2 electrons, it will have a positive 2 charge when it forms an ion. This is because it loses negatively charged electrons, leaving behind a positively charged atom due to an excess of protons.
How many valence electrons are in an atom of magnesuim?
There are 2 valence electrons in an atom of magnesium. There are 5 valence electrons that are in an atom of phosphorus. There are 4 valence electrons that are in a silicon atom.
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 an atom of barium possess?
A barium atom has two valence electrons.
How many electrons does helium have on the periodic table?
2. The atomic number which is 2 stands for how many protons (also electrons, in an uncharged atom) are in the element's atom.
How many electrons are in a helium atom?
2
