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FAQ: When are atoms most stable?

What rule makes an atom stable?

A stable atom has a net charge of 0. In other words, it has an equal number of protons and electrons. The positive protons cancel out the negative electrons. When the number of electrons does not equal the number of protons, the atom is ionized.

What makes an atom stable or reactive?

An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom’s nucleus may result from an excess of either neutrons or protons.

Why do atoms want to be stable?

All atoms are eager to become octet-in which the total number of the electrons in the outermost shell is equal to eight (since 8 is the total no. of electrons the last shell can carry) and it cannot accept electrons anymore so it becomes stable. That’s why they want to be stable and complete their vacancies.

What are three ways an atom can become stable?

Another way atoms can become more stable is by sharing electrons (rather than fully gaining or losing them), thus forming covalent bonds.

There are three major chemical bonds.

  • Ionic bond.
  • Covalent bond.
  • Hydrogen bond.

Why is the octet rule true?

Atoms follow the octet rule because they always seek the most stable electron configuration. Following the octet rule results in completely filled s- and p- orbitals in an atom’s outermost energy level. Low atomic weight elements (the first twenty elements) are most likely to adhere to the octet rule.

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Why does the octet rule exist?

The octet rule exists because the atoms of many elements become more stable by attaining a noble gas electron configuration. Most noble gases have eight valence electrons (He has only 2) which gives them a full outer shell of electrons in the s and p sublevels of their highest energy level.

What is the least reactive element?

Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level.

Is hydrogen stable or unstable?

If we talk about the chemical stability of Hydrogen in its natural form then it is unstable. This is because Hydrogen has one electron in its lowest energy level meaning it has an unstable arrangement.

Does more electrons mean more reactive?

It’s when an atom has more electrons than protons it is more reactive. And an atom that has a complete valence shell gets even more stable. Atoms that have complete valence shells are known as noble gases.

How do atoms become happy?

Two happy atoms! When an atom gives up an electron, it becomes positive like the sodium ion (Na+). When an atom gets an extra electron, it becomes negatively charged like the fluorine ion (F). The positive and negative charges continue to attract each other like magnets.

Why do atoms want 8 electrons?

A complete octet is very stable because all orbitals will be full. Atoms with greater stability have less energy, so a reaction that increases the stability of the atoms will release energy in the form of heat or light. A stable arrangement is attended when the atom is surrounded by eight electrons.

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What happens if an atom is unstable?

The unstable nucleus of radioactive atoms emit radiation. When this occurs, a new atom and element are formed. This process is called radioactive decay. It continues until the forces in the unstable nucleus are balanced.

What is the smallest atomic particle?

The smallest particle is the quark, the basic building block of hadrons. There are two types of hadrons: baryons (three quarks) and mesons (one quark, one antiquark).

Why do atoms want a full outer shell?

To attain stable electronic configuration they they try to have full the outermost orbit or valence orbit. This is done by losing or gaining electrons. the answer for your question is simple. To attain stable electronic configuration they they try to have full the outermost orbit or valence orbit.

How do atoms bond together?

Atoms come together to form molecules because of their electrons. When two atoms share electrons between them, they are locked together (bonded) by that sharing. These are called covalent bonds. Bonds like this are in oxygen gas, nitrogen gas, and hydrogen gas.

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