The scientist that provided a foundation for John Dalton’s work on the atomic structure is Sir Joseph John Thompson or J.J. Thompson. It was theorized after the discovery that electrons are present in the atom. In this model, the atom is composed mainly of electrons. It was describe as plum pudding because the electrons are dispersed within the atom.
b) Br2 (L)
c) Ar (g)
d) Ag (s)
Answer:
Decrease order of speed of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
Decreasing order of space of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
Explanation:
Solid state : In this state, the particles are closely packed and does not have any space between them. They have least kinetic energy due to restricted movement. This state has a definite shape and volume.
Liquid state : In this state, particles are present in random and irregular pattern. The particles are closely arranged but they can move from one place to another and thus have higher kinetic energy as compared to solids. This state has a definite volume but does not have a fixed shape.
Gaseous state : In this state, particles are loosely arranged and have a lot of space between them. They have highest kinetic energy. This state has indefinite volume as well as shape.
Decrease order of speed of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
Decreasing order of space of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
The answer is True, I've taken this test.
Nitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15.
The most abundance isotope is nitrogen-14 because of its stability and resistance to radioactive decay.
Isotopes are variants of a chemical element that have the same number of protons (which defines the element) but a different number of neutrons in their nuclei. This means that isotopes of the same element have slightly different atomic masses. In the case of nitrogen, its three naturally occurring isotopes are nitrogen-13 (N-13), nitrogen-14 (N-14), and nitrogen-15 (N-15).
The abundance of an isotope refers to the percentage of that isotope present in a naturally occurring sample of the element. The different isotopes of an element are usually found in different proportions, and the most abundant isotope is the one that appears most frequently in nature.
Nitrogen Isotopes:
a) Nitrogen-14 (N-14):
Nitrogen-14 is the most abundant isotope of nitrogen. It has 7 protons and 7 neutrons in its nucleus. N-14 makes up about 99.63% of naturally occurring nitrogen. This high abundance is primarily due to the relatively stable nuclear configuration of N-14, making it less prone to radioactive decay.
b) Nitrogen-15 (N-15):
Nitrogen-15 is the second most abundant isotope of nitrogen. It has 7 protons and 8 neutrons in its nucleus. N-15 makes up a much smaller percentage of naturally occurring nitrogen, around 0.37%. While N-15 is less abundant than N-14, it is still significant and plays a role in various scientific and environmental studies.
c) Nitrogen-13 (N-13):
Nitrogen-13 is the least abundant of the three naturally occurring nitrogen isotopes. It has 7 protons and 6 neutrons in its nucleus. N-13 is radioactive and is not as stable as N-14 and N-15.
The higher abundance of nitrogen-14 can be attributed to its relative stability compared to the other isotopes. The number of neutrons in an isotope's nucleus affects its stability, and N-14 has a balanced number of neutrons to maintain its stability. This stability prevents it from undergoing radioactive decay at a significant rate, allowing it to persist in higher proportions in nature.
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Explanation:
Nitrogen-14 is the most abundant isotopes of Nitrogen.
The balanced equation is: 2Fe + 3F2 ⇒ 2FeF3
A chemical equation needs to be balanced if you want to make the wide variety of the atoms of the reactants equal to the variety of the atoms of the goods.
Given,
Iron + fluorine ⇒ Iron Flouride
Fe + F2 ⇒ FeF3
Now to balance this reaction:
2Fe + 3F2 ⇒ 2FeF3
This reaction is balanced.
This medicine is a mixture manufactured from nutrients, iron, and fluoride. it's miles utilized in infants and youngsters to deal with or prevent deficiency because of terrible weight loss programs or low tiers of fluoride in drinking water and other sources.
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Answer:
iron+flourine.............iron flouride
Fe+F2.............FeF3
the above reaction is not balanced
now to balance this reaction
2Fe+3F2...........2FeF3
now this reaction is balanced
The mass will not change, because if you add or subtract any clay the mass doesn't change if u took some away or added any the mass would have changed.
Distance has a physical quantity which has been measured in meter. If a man travel then it will measured in meters that shows that how much he had travelled from one place to another place for all such type of things we use to measure the distance.
Centimeter is also been physical quantity which has to be used measure distance. 1 centimeter is just equal to 0.01 meter and 1 centimeter is just equal to 0.00001 kilometer and the kilometer has been large quantity to measure distance on the other hand centimeter is smaller quantity in which distance is measured.
Kilometer is also known as physical quantity which used to measure the distance of 1 kilometer which is equal to 1000 meter and 1 kilometer is just equal to 10,0000 centimeter.
For above conclusion, we easily states that the kilometer is large quantity to measure distance while centimeter is smaller quantity to measure distance. Centimeter is also a physical quantity which is use to measure distance. 1 centimeter is equal to 0.01 meter and 1 centimeter is equal to 0.00001 kilometer.
Therefore,The mass will not change, because if you add or subtract any clay the mass doesn't change if u took some away or added any the mass would have changed.
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