The mass of an electron can be expressed in the box as 
.
Further explanation:
Atom is the smallest particle that can be present in any element. It is also known as the building unit of matter. Each atom has a central part that is known as the atomic nucleus. There are three subatomic particles that constitute the atom. These particles are protons, neutrons, and electrons. The atomic nucleus consists of protons and neutrons, both are collectively called nucleons. Electrons revolve around the nucleus of an atom in definite orbits.
Protons are positively charged subatomic particles, electrons are negatively charged and neutrons have no charge. Since electrons carry a unit negative charge, these create an electric field around them. These also participate in nuclear reactions. The mass of an electron 
is 
, that of protons is 
and that of neutrons is 
. The electrons are responsible for chemical properties of elements. The distribution and arrangement of electrons is used to predict whether the element will be inert or reactive.
Therefore the required answer is .
Learn more:
- Component of John Dalton’s atomic theory: brainly.com/question/2357175
- Basis of investigation for the scientists: brainly.com/question/158048
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Atomic structure
Keywords: atom, matter, atomic nucleus, proton, electron, neutron, subatomic particle, nuclear reactions, electric field, reactive, inert.
Answer:Then a few days later the activity of the sample will be due to have more of Nuclides Y than X
Explanation:
This is because half life of nuclide X is about a day which is less than Y having half life of about a week, After a few days, we would observe that X would have disintegrated more while Y will still be predominant since it disintegrate slower than X. The time it takes for X to disintegrate will always be faster than Y.
Answer:
The degree of unsaturation for a compound with molecular formula C₆H₆ is 4.
Explanation:
The degree of unsaturation is calculated through the following formula:
2n + 2 - H / 2
n = Total number of hydrogen in given compound
There are six hydrogen in given compound, now we will calculate the degree of unsaturation by putting the value of n= 6
(2(6) + 2 - 6 )/ 2
(12+ 2 - 6) / 2
(14 - 6) /2
8 / 2 = 4
The degree of unsaturation for a compound with molecular formula C₆H₆ is 4.
The given compound is benzene and degree of unsaturation is 4. Three double bond and one ring.
Answer:
ethier a dessert or a plains
though plains can get rain in the summer
from me living in both
it seems more like a dessert
Answer: i beleive it is fixation in edge 2020
Explanation:
