Chemistry, 30.06.2019 21:30 tangia

How many covalent bonds are predicted for each atom? atoms: br, h, cl, ge, s, as, b, si

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Answer from: zackarygonzalez1028

Explanation:

Covalent bonds are defined as the bonds which are formed by the sharing of electrons between the atoms. They are usually formed by non-metals.

The number of covalent bonds are predicted by the number of valence electrons.

Elements belonging to Period 3 and above will form covalent bonds same as the number of valence electron because of the presence of d-orbitals.

Elements belonging to period 2 will form covalent bonds = (8 - number of valence electrons)

For the given elements:

Bromine is the 35th element which belong to period 4. The electronic configuration of $1s^22s^22p^63s^23p^63d^{10}4s^24p^5$

This element has 7 valence electrons and will form 7 covalent bonds.

Hydrogen is the 1st element which belong to period 1. The electronic configuration of 1s^1

This element has 1 valence electrons and will form 1 covalent bond.

Chlorine is the 17th element which belong to period 3. The electronic configuration of 1s^22s^22p^63s^23p^5

This element has 7 valence electrons and will form 7 covalent bonds.

Germanium is the 32nd element which belong to period 4. The electronic configuration of $1s^22s^22p^63s^23p^63d^{10}4s^24p^2$

This element has 4 valence electrons and will form 4 covalent bonds.

Sulfur is the 16th element which belong to period 3. The electronic configuration of 1s^22s^22p^63s^23p^4

This element has 6 valence electrons and will form 6 covalent bonds.

Arsenic is the 33rd element which belong to period 4. The electronic configuration of $1s^22s^22p^63s^23p^63d^{10}4s^24p^3$

This element has 5 valence electrons and will form 5 covalent bonds.

Boron is the 5th element which belong to period 2. The electronic configuration of 1s^22s^22p^1

This element has 3 valence electrons. It will form (8 - 3) = 5 covalent bonds.

Silicon is the 14th element which belong to period 3. The electronic configuration of 1s^22s^22p^63s^23p^2

This element has 4 valence electrons and will form 4 covalent bonds.

Answer from: Quest

more info ? ? i don't understand what the question is

explanation:

Answer from: Quest

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

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How many covalent bonds are predicted for each atom? atoms: br, h, cl, ge, s, as, b, si...

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