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2 years ago

What is the molecule that formed between B and F?

Chemistry

1 answer:

Alik [6]2 years ago

5 0

Answer:

BF3

Explanation:

For this question, you need to use the number of valence electrons present in each element. Boron is in group 3/13 on the periodic table so you know it has 3 valence electrons while Fluorine is in group 7/17 so it has 7 valence electrons. These elements are both covalent so they will share electrons. All elements in the first three rows want to reach either have 8 valence electrons or zero valence electrons depending on whichever is easier. When B and F interact each Fluorine will only want to take one electron, but Boron wants to get rid of all 3 electrons, so it will bond with 3 Fluorine to get rid of all its valence electrons.

I hope this helps.

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Which best characterizes a crystal

Pachacha [2.7K]

<h3>Answer;</h3>

A dense substance that is hard and incompressible

<h3>Explanation;</h3>

Crystals are solids that are made up of particles such as molecules, atoms or ions, which are arrange in a highly ordered microscopic structure, forming a crystal lattice which extends in all directions.
Examples of crystals include quartz, that is made up of silicon (iV) oxide molecules that are arranged in a lattice,table salt is another example that is made up of sodium and chloride ions that are arranged in a lattice
Crystals are very ordered, they may be made up of atoms of the same elements or atoms of different elements such as in the case of table salt.

5 0

3 years ago

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Which describes the products created from fission reactions? Question 3 options:

Ipatiy [6.2K]

Answer: The correct answer is option A.

Explanation:

Nuclear fission reactions are a type of nuclear reactions in which larger nuclei breaks apart into two or more smaller fragment releasing alpha, gamma of beta particles.

There are 3 types of particles that can be released during this process:

1. Alpha particles: These particles are released when a nuclei undergoes alpha-decay process.

$_Z^A\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\alpha$

2. Beta particles: These particles are released when a nuclei undergoes beta-minus decay process.

$_Z^A\textrm{X}\rightarrow _{Z+1}^{A}\textrm{Y}+_{-1}^0\beta$

3. Gamma radiations: these radiations are released when an unstable nuclei gives off excess energy by a process of spontaneous electromagnetic process.

$_Z^A\textrm{X}^*\rightarrow _Z^A\textrm{X}+_0^0\gamma$

Hence, any of these particles can be released during the process of fission reaction with smaller atoms.

Therefore, the correct answer is option A.

3 0

3 years ago

Enter the atomic symbol, including mass number and atomic number, for iodine-125.

ICE Princess25 [194]

Answer:

Explanation:

Iodine - 125

The atomic symbol of iodine is ¹²⁵₅₃ I

The symbol for iodine is I

The atomic number of iodine is 53,

and the atomic mass of iodine is 125 .

The representation of the atomic symbol is as, the atomic mass is written in uppercase and the atomic number is written in lower case , followed by the symbol of the element .

Iodine is a radio active element , used for many biological process .

It is the second largest -lived radioisotope of iodine .

The first is iodine-129 .

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3 years ago

The process by which people walk

ziro4ka [17]

Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. An animal or machine that usually moves in a bipedal manner is known as a biped /ˈbaɪpɛd/, meaning "two feet" (from the Latin bis for "double" and pes for "foot").

I hope my answer has come to your help. God bless and have a nice day ahead!

7 0

2 years ago

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HELP................!!!!

expeople1 [14]

Your answer is 1-3-2-4 , grass sand water rock

3 0

3 years ago