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xeze [42]
3 years ago
12

Why is the nucleus very tense?

Chemistry
1 answer:
iren [92.7K]3 years ago
7 0
Atoms are composed almost entirely of empty space, about 99.99999999% empty space. Virtually all of the atom's mass is from its protons an neutrons. In cases where intense gravity has 'squeezed out' most of the empty space, such as in a neutron star, the matter is incredibly dense. This density is approximately equivalent to the mass of a Boeing 747 compressed to the size of a small grain of sand, or the human population condensed to the size of a sugar cube.
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Boron has an atomic mass of 10.811. What does this mean?
icang [17]

Answer:

Knowing that boron has an atomic mass of 10,811 means that all boron isotopes on average weigh 10,811 u.

Explanation:

The atomic mass of an atom is the mass of the atom measured in u (unified atomic mass unit), although we can also express it as Da (Dalton's unit)

Atomic mass refers to the average mass that all isotopes of that element have.

When we speak of isotopes we are referring to the element itself but with a different number of neutrons, which makes it modify its mass number.

6 0
3 years ago
Without the sun, life on earth would not exist. There would be no warmth, no plants, no animals, no night and day.
zvonat [6]

Answer: Option (A) is the correct answer.

Explanation:

The process in which two or more small nuclei combine together to result in the formation of a larger nuclei is known as fusion.

In Sun, four hydrogen nuclei combine together to result in the formation of helium atom. This combining of small hydrogen nuclei to form a large helium nuclei represents fusion process occurring inside the Sun.

Thus, we can conclude that to power itself, the sun is constantly generating a nuclear reaction in its core, in which hydrogen nuclei are combined to form helium. This process is known as fusion.

7 0
3 years ago
Read 2 more answers
Bandingkan kesan penyusuan susu ibu dengan penggunaan susu formula terhadap<br>perkembangan bayi.​
DedPeter [7]

Answer:

kau kje nk senang je kan . gi cari jawapan dlm buku la

Explanation:

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5 0
2 years ago
Which of the following can be described as genetic material that describes the cell?
skelet666 [1.2K]
The best answer to this question is DNA. DNA holds the genetic makeup of the body in each individual cell. RNA is part of DNA. The nucleus holds the DNA. Ribosomes turn RNA into protein. That is why the answer cannot be RNA, ribosomes, or the nucleus. 
7 0
3 years ago
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What element forms an ion with an electronic configuration of [kr] and a –2 charge?
nekit [7.7K]
Must be Selenium (Se). It is two space away from Kr, which means that it needs two extra electron to be like a noble gas, Kr.
6 0
3 years ago
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