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3 years ago

Element in the noble ga family are considered stabled because their outer energy levels are

Chemistry

1 answer:

blsea [12.9K]3 years ago

3 0

Answer: In octet state.

Explanation: For noble gases they are stable in state since their outer shell contain fully occupied having 8 electrons.

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An element that can have different physical properties or chemical arrangement is called a (n)

shusha [124]

<h3>Answer:</h3>

D. Allotrope

<h3>Explanation:</h3>

What is allotropy?

Allotropy refers to the existence of an element in more than one physical forms.
Allotropes are therefore different forms of an element with different physical properties or chemical arrangements.

What are some examples of allotropes?

Examples of elements that exhibit allotropy include, sulfur and carbon.
Allotropes of carbon are diamond and graphite.
Allotropes of sulfur are monoclinic sulfur and rhombic sulfur.

3 0

2 years ago

What the requirement for a reversible reaction to be at equilibrium ?

lana66690 [7]

A reversible reaction is a chemical change in which the products can be converted back to the original reactants under suitable conditions. In a reversible reaction, changing the reaction conditions e.g. concentration, pressure or temperature will change the net direction the reaction goes i.e. more to the right (forward) or more to left (backward).It also means a reversible reaction does not go to completion in either direction and all components, original reactants or ensuing products, ALL co-exist in the reaction mixture (see notes on chemical equilibrium).This means the reaction can go in either direction i.e. A + B ==> C + D or C + D ==> A + BA reversible reaction is shown by the sign , a half-arrow to the right (direction of forward reaction), and a half-arrow to the left (direction of backward reaction).It is really important you understand that the terms right & left AND forward & backward are used in the context of how the equation is presented.Most reactions are not reversible (irreversible) and have the usual complete arrow only pointing to the right.

4 0

3 years ago

Consider a carbon atom that is sp hybridized. Indicate how many of each orbital exist on this carbon atom by sorting each orbita

Karo-lina-s [1.5K]

Explanation:

It is known that atomic number of carbon is 6 and its electronic configuration is $1s^{2}2s^{2}2p^{2}$ . This means that in its neutral state it contains 2 electrons in its s-orbital and 2 electrons in its p-orbital.

After excitation there will be one electron present in its s-orbital and three electrons present in p-orbital.

Therefore, after the hybridization there will be in total 2 sp hybrid orbitals, 2 p-orbitals and zero s-orbital.

3 0

3 years ago

I REALLY NEED HELP THIS IS DUE TOMORROW AND IM GONNA FAIL IF I DONT DO IT SO I NEED HELP

deff fn [24]

Answer:

Each oxygen atom is connected to the central O atom with 2 covalent bonds.

Explanation:

Oxygen atoms are connected by two covalent bonds in the oxygen molecule from the Lewis structure, we see that the bond order for O2 is 2 (a double bond) this is clearly seen in the image attached. There are no resonance structures for the oxygen molecule since there are no partial bonds in the molecule, only the two covalent bonds present.

This structure of oxygen shown in the image is its only structure, showing the covalent bonds formed and other non bonding electrons present in the molecule. The octet rule is followed in drawing the structure. Each oxygen atom possesses an octet of electrons on its outermost shell.

Another explanation

A Lewis structure is also called a dot electron structure. A Lewis structure represents all the valence electrons on atoms in a molecule as dots. Lewis structures can be used to represent molecules in which the central atom obeys the octet rule as well as molecules whose central atom does not obey the octet rule.

Sometimes, one Lewis structure does not suffice in explaining the observed properties of a given chemical specie. In this case, we evoke the idea that the actual structure of the chemical specie lies somewhere between a limited number of bonding extremes called resonance or canonical structures.

The canonical structure of the carbonate ion as well as the lewis structure of phosphine is shown in the image attached to this answer.

Explanation:

5 0

2 years ago

Read 2 more answers

What is the atomic number of this atom?a,b,c,8,13,9,5,4

Ulleksa [173]

Answer:

We cannot see the atom so we are unable to answer this question for you.

Create another one.

8 0

2 years ago