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The strong nuclear force, one of the four fundamental universal forces, is responsible for holding atoms together. Without it, the nucleus, consisting of positive protons and neutral neutrons, would have nothing to stop ... More »

www.reference.com Science Chemistry Atoms & Molecules

The forces that hold different atoms together are intramolecular forces called bonds. Additionally, there are interactive forces between atoms of different molecules, like the van der Waals force, but these are much weak... More »

www.reference.com Science Chemistry Atoms & Molecules

The forces that hold atoms together are the electrical force and the strong force, which is stronger than the electrical force. The electrical force does the majority of the work of holding atoms together, but the strong... More »

www.reference.com Science Chemistry Atoms & Molecules
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Most ionic compounds are soluble in water because the electrostatic forces of the polar water molecules are stronger than the electrostatic forces keeping the ions together. There are several exceptions, however, where t... More »

www.reference.com Science Chemistry Atoms & Molecules

Charged groups of atoms are ions. Ions consist of one or more atoms that have gained or lost electrons. If the group gains electrons, it has a negative charge, and if it loses electrons, it becomes positive. More »

www.reference.com Science Chemistry Atoms & Molecules

The difference between atoms, ions and isotopes is the number of subatomic particles. An atom is the basic building block of matter, the smallest molecule of an element that exists and that cannot be chemically divided b... More »

www.reference.com Science Chemistry Atoms & Molecules

Positive and negative ions are formed by gaining or losing electrons from neutral atoms. Metallic elements produce positively charged ions by losing electrons while nonmetallic elements produce negatively charged ions by... More »

www.reference.com Science Chemistry Atoms & Molecules