When can we say that the atom is electrically balanced?

When can we say that the atom is electrically balanced?

When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral.

Why is an atom electrically balanced?

Atoms are electrically neutral because they contain equal quantities of positively charged protons and negatively charged electrons. Electrons and protons have equal but opposite charges, so the result is no net charge. Ions are atoms that have gained or lost electrons.

How is an atom is electrically stable?

Explanation: An atom has equal number of protons and electrons in its ground state. This makes the atom neutral and thus electrically stable.

What makes an atom balanced and stable?

Protons and electrons have equal and opposite charges. When the atom is stable, it has a net electrical charge of 0, meaning that the number of protons equals the number of electrons. The nucleus is also balanced, in that the number of protons equals the number of neutrons.

What is 2n2 rule?

2n2 rule: The first K shell can hold upto 2 electrons, L shell can hold up to 8, third M shell can hold up to 18and the fourth N shell can hold upto 32 electrons. This rule of arrangement of electrons according to the shell is known 2n2 rule where n means number of shell. Helium atom contains 2 protons and 2 neutrons.

Is atom electrically neutral?

Heavier atoms tend to have more neutrons than protons, but the number of electrons in an atom is always equal to the number of protons. So an atom as a whole is electrically neutral.

How do you know if an atom is stable or unstable?

Atoms found in nature are either stable or unstable. 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.

When can an atom achieve stability?

The stability of atoms depends on whether or not their outer-most shell is filled with electrons. If the outer shell is filled, the atom is stable. Atoms with unfilled outer shells are unstable, and will usually form chemical bonds with other atoms to achieve stability.

Why do atoms have to be stable?

Many atoms become stable when their valence shell is filled with electrons or when they satisfy the octet rule (by having eight valence electrons). An atom stabilizes by bonding with another atom in order to fill out its outer set of electrons in its shell.

What is the law of modern periodic table?

Periodic Table: It is the table of chemical elements arranged in order of atomic number such that elements with similar atomic structure appear in the vertical columns. Modern periodic law: The Modern periodic law states “The chemical and physical properties of elements are a periodic function of their atomic numbers”.

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