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Kipish [7]
3 years ago
13

Atoms of the main group elements either gain or lose electrons so they have eight electrons in the outermost energy level. In

Chemistry
1 answer:
Yuliya22 [10]3 years ago
8 0

Answer:

Hey there can you post the complete question ,i cannot find any element

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HELP ASAP
sveta [45]
Uhh I think d sorry if wrong ;-;
3 0
3 years ago
Read 2 more answers
the height of a column of mercury in barometer is 754.3mm. what us the atmospheric pressure in atm. in kPa.
Aleksandr-060686 [28]
1 atm = 760mmHg
754.3 mmHg / 760 mmHg * 1atm = 0.99 atm
760 mmHg = 101.3 KPa
754.3 mmHg/ 760mmHg *101.3 KPa = 100.54 KPa

Hope this helps!
8 0
4 years ago
Answer question 1-6
Softa [21]
It is 4 because if you think about it it makes more sense
7 0
3 years ago
Which are isotopes? an atom that has an atomic number of 20 and a mass number of 42 is an isotope of an atom that has which are
olga55 [171]
Isotopes have the same atomic number or same number Protons, but different mass number or neutrons.

You can say atomic number or protons.

22 neutrons 20 protons
atomic number 20 and a mass number 40
Atomic number 20 and mass # 42
6 0
3 years ago
Read 2 more answers
Give the iupac name for the following compounds.
aalyn [17]

Name Methane CH4,Butane C4H10,Acetone CH3COCH3 ,Toluene  Acetylene CH3C6H5, Ethyl C2H2 ,Alcohol C2H5OH

<h3>The following compound is CH3 CH3 CH2 CH2 CH2 CH3, but what is its IUPAC name?</h3>

Answer and justification A longest carbon chain in the above diagram has seven carbon atoms, as can be observed.The IUPAC nomenclature for this compound is heptane since all of the bonds are single bonds devoid of any functional groups.

<h3>What is this compound's IUPAC name, CH3 CH2 CH2 CH2 CH2 CH?</h3>

When there are nine carbons, the word non is the root.Therefore, nonane is the IUPAC term for CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3.

To know more about iupac  visit:

brainly.com/question/16631447

#SPJ4

4 0
2 years ago
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