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iris [78.8K]
2 years ago
7

the atomic number tells you the number of _______ in one atom of an element. It also tells you the number of ______ in a neutral

atom of that element. The atomic number gives the "identity" of an element as well as its location on the Periodic Table. No two different elements will have the _____ atomic number.
Chemistry
1 answer:
uysha [10]2 years ago
5 0

Answer:

Protons, electrons, same in that order is the answer.

Explanation:

this has to do with the periodic table information.

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Be sure to answer all parts. describe the hybrid orbitals used by the central atom and the type(s) of bonds formed in i3−. sp sp
irakobra [83]

Answer:

Triiodide molecule (I₃⁻) has sp³d hybridization

The number of sigma (σ) bonds = 2

and the number of Pi (π) bonds = 0

Explanation:

In a Triiodide molecule (I₃⁻), three iodine atoms combine to form a linear and symmetrical polyhalogen ion. The triiodide ion (I₃⁻) is formed by the chemical reaction of diatomic iodine (I₂) with iodide ion (I⁻).

The involved chemical reaction: I₂ + I⁻ ⇌ I₃⁻

<u>The structure of the triiodide ion:</u> [ I − I − I ]⁻

As we know, that an iodine atom has 7 valence electrons.

To complete its octet, if the central iodine atom accepts an electron to form an iodide ion, thus having 8 valence electrons.

Then this central iodide bonds with two terminal iodine atoms by sigma (σ) bonds. So, the number of non-bonding electrons on the central iodide ion is 6.

<em>Thus, the number of lone pairs on the central iodide atom = 3</em>

<em>Also, the number of sigma (σ) bonds = 2</em>

<em>and the number of Pi (π) bonds = 0</em>

<u>Now, the hybridization of this molecule can be determined by the steric number.</u>

Steric number = number of σ bonds + number of lone pairs = 2 +3 = 5 ⇒ sp³d hybridization

<u>Therefore, the Triiodide molecule (I₃⁻) has sp³d hybridization.</u>

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