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We can predict the number of bonds an atom can form by counting: (select all that apply)Select all that apply:the number of core electrons needed to form an octetthe number of additional electrons needed to form an octetthe number of valence electronsThe total number of core electrons.

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In order to predict the number of bonds an atom can form, we must count the number of core electrons needed to form an octet, the number of additional electrons needed to form an octet, the number of valence electrons, and the total number of core electrons.

The octet rule states that atoms tend to form eight electrons in their outermost shells. To form an octet, atoms must have a total of eight electrons in their outermost shells. Therefore, the number of core electrons needed to form an octet is the number of electrons in the outermost shell minus eight.

In addition, the number of additional electrons needed to form an octet is the number of electrons needed to fill the outermost shell up to eight. The number of valence electrons is the number of electrons in the outermost shell, and the total number of core electrons is the total number of electrons in the atom. By counting these numbers, we can predict the number of bonds an atom can form.

For example, a chlorine atom has seven electrons in its outermost shell. To form an octet, it needs one additional electron. Therefore, the number of core electrons needed to form an octet is seven minus eight, or negative one. The number of additional electrons needed to form an octet is one, the number of valence electrons is seven, and the total number of core electrons is seventeen. Since chlorine has seven valence electrons, it can form up to seven bonds.

Learn more about valence electrons at :https://brainly.com/question/28977387

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