Which has a larger atomic radius, potassium or bromine, and why?
1 answer:
Both Bromine with an atomic number of 35 and Potassium with an atomic number of 19 both belong to group 4. The 'rule' is that the atomic radius increases across the group from Group One to Eight. This can be proven true.
As you move across the a period from left to right, the amount shell remains the same however an electron is added on to the final orbital. In the case of potassium which has only one shell on the final shell, that electron is shielded from the pull of the nucleus by the third shell of electrons and as such the shell is able to float further away from the rest of the shells thus making a larger atom on a whole. In the case of Bromine the number of electrons it has on the fourth shell (one down from the octet) is pulled heavily toward the nucleus because the increase in the number of protons in the nucleus thus seeing where its shells are closer to the nucleus therefore contributing to a smaller atomic radius.
Just so that you will always remember this here is a picture to remind you always.
As you move across the a period from left to right, the amount shell remains the same however an electron is added on to the final orbital. In the case of potassium which has only one shell on the final shell, that electron is shielded from the pull of the nucleus by the third shell of electrons and as such the shell is able to float further away from the rest of the shells thus making a larger atom on a whole. In the case of Bromine the number of electrons it has on the fourth shell (one down from the octet) is pulled heavily toward the nucleus because the increase in the number of protons in the nucleus thus seeing where its shells are closer to the nucleus therefore contributing to a smaller atomic radius.
Just so that you will always remember this here is a picture to remind you always.
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ANSWER: Milk
Explanation: Take this chart from 1-6 are acids from 8-14 those are bases
Now bases are like cleaning products and stuff
While acids are like lemons and other stuff
If you look at milk level which is 6.5 It is an acid but its A lot closer to neutral Than Other acids
Explanation: Take this chart from 1-6 are acids from 8-14 those are bases
Now bases are like cleaning products and stuff
While acids are like lemons and other stuff
If you look at milk level which is 6.5 It is an acid but its A lot closer to neutral Than Other acids
When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.
The chemical symbol for sodium carbonate is .
The decomposition of sodium carbonate is:
The decomposition of sodium bicarbonate, will result in the formation of sodium oxide,
and carbon dioxide,
.
Hence, carbon dioxide, will produce with sodium oxide,
on decomposition of
.
Answer:
See explanation
Explanation:
For this question, we have to remember the effect of an atom with high <u>electronegativity</u> as "Br". If the "Br" atom is closer to the carboxylic acid group (COOH) we will have an <u>inductive effect</u>. Due to the electronegativity of Br, the electrons of the C-H bond would be to the Br, then this bond would be <u>weaker</u> and the compound will be more acid (because is easier to produce the hydronium ion ).
With this in mind, for A in the last compound, we have <u>2 Br atoms</u> near to the acid carboxylic group, so, we will have a high inductive effect, then the C-H would be weaker and we will have <u>more acidity</u>. Then we will have the compound with only 1 Br atom and finally, the last compound would be the one without Br atoms.
In B, the difference between the molecules is the <u>position</u> of the "Br" atom in the molecule. If the Br atom is closer to the acid group we will have a <u>higher inductive effect</u> and more <u>acidity</u>.
See figure 1
I hope it helps!
