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… The electrons are still shared between the atoms but the electrons are not equally attracted to both elements. The nature of the interaction between the atoms depends on their relative electronegativity.

The number of atoms per cell is about the same as the number of cells in the body.Why do electrons form bonds?īonds are formed when valence electrons the electrons in the outermost electronic “shell” of an atom interact. Scientists estimate the average cell contains 100 trillion atoms. Divide the given mass by its molar mass to get moles then multiply times 6.022×1023molecules1mol. So the electromagnetic force is what allows atoms to bond and form molecules allowing the world to stay together and create the matter you interact with all of the time.ĭetermine the mass of the substance and its molar mass. This allows different atoms to bind together an effect called the residual electromagnetic force. By adding one more electron we get a negatively charged Cl – ion with a net charge of -1. A neutral chlorine atom for example contains 17 protons and 17 electrons. … Atoms that gain extra electrons become negatively charged. Neutral atoms can be turned into positively charged ions by removing one or more electrons.

… In other words one atom gains an electron while the other loses an electron. This attraction occurs when electrons are shared between atoms or when electrons are exchanged between the atoms that are involved in the bond. What happens when atom bond?Ī chemical bond is formed when atoms are held together by attractive forces. A molecule may be homonuclear which means it consists of atoms of one chemical element as with oxygen (O 2) or it may be heteronuclear a chemical compound composed of more than one element as with water (H 2O). A molecule is defined as two or more atoms of the same element different element that are bound together.