zahraalshagawa02
26.05.2021 •
Chemistry
What was necessary for the heliocentric model to become as widely accepted as it is today
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Ответ:
Explanation:
Non-metals have a strong attraction for shared electrons as there is deficiency of electrons in non-metals. Thus, in order to complete their octet they tend to develop attraction for shared electrons if the combining atom does not have excess of electrons to donate.
A substance held together by an ionic bond is known as ionic substance because an ionic bond can only be formed by transfer of electrons.
Metals have a lower attraction for shared electrons because metals contain excess of electrons. Thus, they did not have strong attraction for electrons.
A triple bond is formed when three pairs of electrons are being shared between two atoms. Each pair of electron contains a total of 2 electrons.
An ionic bond is formed when electrons are transferred from one atom to another.
A covalent bond is formed when there is sharing of electrons between 2 atoms. Non-metals are deficient of electrons as compared to metals. Thus, 2 non-metals when combine together then it results in the formation of a covalent bond as there is sharing of electrons.
An ionic bond forms when there is transfer of electrons from one atom to another. An atom with excess of electrons can easily donate its electrons to an electron deficient atom. Therefore, metals and non-metals will form ionic bonds.
A substance held together by covalent bonds is known as a molecular substance. In molecular substance two atoms are joined together by sharing of electrons that is through covalent bonds.
Therefore, all the points are matched as follows.
What types of elements have a strong attraction for shared electrons - (a) non-metals.A substance held together by an ionic bond is known as what type of substance - (f) ionic.What types of elements have a lower attraction for shared electrons - (e) metals.What type of bond has been formed when three pairs of electrons are being shared between two atoms - (g) triple bond.What type of chemical bond is formed when electrons are transferred from one atom to another - (d) ionic bond.As a very general rule, covalent bonds form between what types of elements - (b) 2 non-metals.As a very general rule, ionic bonds form between what types of elements - (h) metals and non-metals.A substance held together by covalent bonds is known as what type of substance - (c) molecular.