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Nadusha1986 [10]
3 years ago
12

Beryllium has a nucleus composed of protons and neutrons. Given the data, how many protons are in a typical Beryllium nucleus?

Chemistry
2 answers:
Jlenok [28]3 years ago
5 0

Atoms are made of 3 types of subatomic particles ; protons, neutrons and electrons

protons and neutrons are located inside the nucleus and electrons are found in energy shells around the nucleus. Protons are positively charged, electrons are negatively charged and neutrons are neutral. elements in their ground state are neutral with equal amounts of protons and electrons.

Atomic number is the number of protons. atomic number is characteristic for the element.

atomic number of Be is 4 therefore Be has 4 protons

answer is B. 4


earnstyle [38]3 years ago
3 0
Beryllium has an atomic number of four so has four protons in its nucleus. The atomic number shows how many protons are in the nucleus so once this number is known then the answer can be ascertained and recorded as such.
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332.918g O2

Explanation:

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8 0
2 years ago
A solution contains 14 grams of KCl in 100. grams of water at 40°C. What is the minimum amount of KCl that must be added to make
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Answer:

1386g

Explanation:

Solubility of a solute is the ability of the solute to mix into a liquid (the solvent). It measures the highest amount of substance mixed into a liquid solvent while they are both at equal amounts.

if 14g dissolved in 100cm3

  the amount that will dissolve in 1000cm3 = 14 x 1000/ 100

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To form a saturated solution, 1400 - 14 = 1386g must be added.

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3 years ago
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5 0
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If there were an element above fluorine in the periodic table what phase would you expect it to be in (at room temp)?
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3 0
3 years ago
A student writes the following explanation of how one type of compound is formed. these compounds are made by the repeated joini
tatyana61 [14]

In the given question according to the information the process of polymerization is an addition polymerization.

<h3>What is polymerization?</h3>

Polymerization is a process in which addition of many small molecules takes place for the formation of a large three dimensional substance known as polymer.

In the polymerization of polyethene the small repeating molecule is ethene and in this process product formed due to the addition process to the double bond of the ethene.

  • In condensation polymerisation removal of water molecule or any other molecule takes place.
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  • In dehydrohalogenation polymerisation removal of hydrogen halide molecule takes place.

Hence given process is an addition polymerisation.

To know more about polymerisation, visit the below link:

brainly.com/question/17932602

6 0
2 years ago
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