What are the two most reactive groups of elements in the periodic table?
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The periodic table is a tabulated organization and representation of chemical elements that classify elements similar to repeating characteristics and order them by their increasing atomic number.
The periodic table is structured into:
- rows known as periods and;
- columns usually called groups.
The groups are categorized from group 1 (known as the alkali metals) to group 18 (i.e. the noble gases)
The list of the two most reactive groups are:
- Alkali metals and;
- The halogen family
- Alkali metals i.e the group 1 metals are one of the two metals with the highest reactivity. This is owing to their greater atomic radii and lower ionization energies, among other factors. They exhibit an oxidation state of +1 and typically donate electrons in reaction with the halogen family thereby resulting in the formation of an ionic bond. They also have lower boiling and melting points than other elements and are less dense.
- The halogen family which is the other group of the most reactive elements on the periodic table is distinguished by their electronegativity characteristics. i.e. their ability to attracts electrons to themselves. They are located in group 7 on the periodic table.
Thus, we can conclude that the two most reactive groups of elements in the periodic table are the alkali metals and the halogen family.
Learn more about the periodic table here:
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Answer:
The car's acceleration is: a = 12.44 [m/s²]
Explanation:
To solve this problem we must use the following equation of kinematics.
where:
Vf = final velocity = 62.2 [m/s]
Vo = initial velocity = 0 (because the car stars from the rest)
a = acceleration [m/s²]
t = time = 5 [s]
62.2 = 0 + a*5
a = 12.44 [m/s²]
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Answer:
The answer for this question is 146 neutrons
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Answer:
Unit Cell
Explanation:
- A unit cell is the smallest fundamental particle of a crystal structure that represents the structure of a crystal.
- Long-range, three-dimensional repetitiveness of this unit cell forms a crystal. A unit cell is composed of ions or atoms in a particular arrangement forming a well-defined structure.
- Crystal have a sharp melting and boiling point and when cut using a tool, they give a sharp edge on the pieces.
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Answer:
The amount of carbon dioxide is little in deionized water.
Explanation:
Deionized water is a water with little or no impurities. Impurities are in waters are not able to boil below or above the boiling point of water,and in this case are been retained in the original container.
Answer:
There is little CO2 in freshly deionized or distilled water.
Explanation:
Freshly distilled water has no hydrogen peroxide. Distilled water contains calcium, which stabilizes the sodium hydroxide , Freshly deionized water has a pH of 4.72. There is little CO2 in freshly deionized or distilled water.