Which of the following contains ionic bonding?
h2o2
po33-
p2o5
alcl3

AlCl₃ is an ionic compound

Atoms have different stability. Unstable atomic atoms will try to form stable electron configurations like those of noble gases. Where noble gases have the number of outer electrons 2 or 8

The formation of electron configurations such as noble gases can be done by sharing electrons with covalent bonds or hand over electrons with ionic bonds

Generally, ionic bonds occur in metal and nonmetallic elements. Metal elements have low ionization energy and non-metallic elements have a high electron affinity

While covalent bonds occur because of the use of shared electrons. In general, this bond occurs between nonmetallic elements, which have the same electron attraction

We see the answer choices available

Between H elements that need 1 electron (duplet, to be stable on He element) and O element that requires 2 electrons (octet, so that it is stable on Ne elements) electron sharing occurs so that it includes covalent bonds

Between P elements that require 3 electrons and O which require 2 electrons, electron sharing occurs so that they include covalent bonds

Al element will release 3 electrons (according to the stable configuration element Ne). to be submitted to Cl element which requires 1 electron (according to the stable configuration of Ar elements)

So ion bonds occur

the octet rule

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a noble gas

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ionic bonds and covalent bonds

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Keywords: ionic and covalent bonds, the octet rule, noble gases, electron configurations