Which statement correctly describes the nucleus of the atom?

Answers

Answer 1

Answer:

When atoms are considered most of the mass lies in the nucleus which has neutrons and protons. Hence the statement is true because on comparing weight of neutron and proton to the mass of electron, mass of electron will be negligible.

The mass {atomic} of any material is actually the mass we get on adding masses of proton and neutron. Electrons are about 104 kg are lighter than the mass of proton Neutron in the mass of proton and neutron and nearly equal to each other.

Answer 2

Answer:

Answer:

An atomic nucleus contains most of the atom’s mass.

Explanation:

I took the assignment.

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a. Atomic #= 3 b. Mass #=7 c. # of Protons = d. # of Neutrons = e. # of Electrons = E in Ist energy level = E in 2nd energy level = E in 3rd energy level = 0 # of Valence E = Li

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I hope you can understand my writing :)

Vibrations that move through the ground carrying the energy released during an earthquake are called

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Vibrations that move through the ground carrying the energy released during an earthquake are called seismic waves. Seismic waves can be measured using a seismometer, which record the motion of the ground.

They are Called Siesmic Waves. It is Number 3

Why does table salt dissolve more rapidly than rock salt

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because in rock salt, the molecules are packed together and they take longer time to separate and dissolve. As for table salt the molecules are less packed together and take less time to dissolve. Think it like this. The more packed or tightly the substance/object is, the longer it will take for the object to dissolve. The less packed the object/substance is the faster it takes to dissolve. Hope this helped :)

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What really is the Ebola virus?

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The Ebola virus belongs to a family of viruses termed Filoviridae. Filovirus particles form long sometimes branched filaments of varying shapes, as well as shorter filaments , and may measure up to 14,000 nanometers in length with diameter of 80 nanometers.Viral particles contain one molecule of single stranded RNA enveloped in a lipid membrane. New viral particle bud from the surface of their host cell. Although Ebola virus was only discovered in 1976, it is an ancient virus and is thought to have split from other viruses thousands of years ago.

The Ebola virus is a highly infectious and often deadly viral disease that belongs to the Filoviridae family.

It was first identified in 1976 during two simultaneous outbreaks in Sudan and the Democratic Republic of Congo (formerly Zaire). The virus is named after the Ebola River, near the location of the Congolese outbreak.

Ebola is transmitted to humans through direct contact with the blood, bodily fluids, or tissues of infected animals, such as fruit bats, monkeys, or gorillas. It can then spread from person to person through close contact with the blood, secretions, organs, or other bodily fluids of infected individuals.

Ebola causes severe symptoms, including high fever, headache, muscle and joint pain, fatigue, diarrhea, vomiting, and internal and external bleeding. The disease has a high fatality rate, ranging from 25% to 90%, depending on the strain of the virus and the healthcare resources available.

To learn more about the Ebola virus

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Who was the first scientist to discover crystals?

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There is no actual documentation of the first person who discovered crystals as they have been around since the formation of the Earth. but, Agust Bravais was one of the very first cryptologists. Although this is the case, the very first crystals are said to be discovered deep within the caves of Africa. Nicolas Steno first discovered how quartz crystals were formed.

Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.3 m/sec2, what force would you need to use or apply to the cart?

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Assuming there is no friction between the floor and the shopping cart we can solve for the force by using F=m*a. With this F=65*(.3) which gives is the force to be 19.5N

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