What’s the elements found in these formulas?

Chemistry

1 answer:

jekas [21]3 years ago

3 0

Answer:

The only one I know is NaC2HO4.

There is Sodium, Carbon, Hydrogen and Oxygen.

1 atom in sodium, 2 atoms in carbon, 1 atom in hydrogen and 4 atoms in oxygen completeting the total of 8 atoms in this element.

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A molecule, that is sp3d2 hybridized and has a molecular geometry of square pyramidal, has ________ bonding groups and ________

bogdanovich [222]

<u>Answer:</u> The correct answer is 4, 2.

<u>Explanation:</u>

Hybridization is calculated by using the formula:

$\text{Number of electron pairs} =\frac{1}{2}[V+N-C+A]$

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

It is given that the hybridization of a molecule is $sp^3d^2$ , this means that the number of electron pairs are 6. The molecular geometry of the molecule having electron pairs as 6 is octahederal.

If the molecular geometry of the molecule is square pyramidal, then it would acquire 4 electron pairs as the bonding groups and the rest pairs would be considered as lone pairs.

Hence, the correct answer is 4, 2.

8 0

3 years ago

Write the electron configuration, the orbital notation, and the noble gas notation for the following elements:

V125BC [204]

Answer:

See explanation

Explanation:

The electron configuration of an atom means a detailed arrangement of the electrons in the atom in orbitals. It normally begins from the least energetic orbitals to the most energetic orbital.

For each of the elements, their electronic configuration in terms of the nearest noble gas is shown below;

P - [Ne] 3s2 3p3

I- [Kr] 4d10 5s2 5p5

Pb- [Xe] 4f14 5d10 6s2 6p2

F- [He] 2s2 2p5

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3 years ago

Calculate the mass in grams of a single atom C¹²

WARRIOR [948]

Answer: c12 has a mass of 12 amu

Explanation:

mass of one mole of c12 = g. So mass of 1 atom of c12 = 1.9927e-23g