Helium (He)
Explanation:
In the picture we see the following elementary particles:
2 electrons - the two spheres with negative charge which orbit around the nucleus
2 protons - the two spheres with positive charge in the nucleus
2 neutrons - the two spheres with no charge in the nucleus
The element will be Helium (He), because it have the atomic number 2 and the mass number 4, which means it contains 2 electrons, 2 protons and 2 neutrons.
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Answer:
Electrostatic attraction between the ions
Step-by-step explanation:
A salt crystal consists of Na⁺ and Cl⁻ ions stacked together in a crystal.
The ions have opposite charges, so they are electrostatically attracted to each other.
Because the ions are so close together, the attractive forces are quite large.
The ionic formula of sodium oxide would be Na20
Organic compounds and inorganic compounds form the basis of chemistry. ... Also, nearly all organic compounds contain carbon-hydrogen or C-H bonds. Note, containing carbon is not sufficient for a compound to be considered organic! Look for both carbon and hydrogen.Jun 1, 2018
<span> Helium only has 2 neutrons
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