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Periodic Table Questions and Answers (Q&A)

It's actually gold. I think that you should actually know the periodic table before you go and make a quiz about it...

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Alkali earth metals

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The answer to the question about “Which three groups of the Periodic Table contain the most elements classified as metalloids (semimetals)?” is letter C of 14, 15, and 16. The list of metalloids are as follows: Arsenic, Tellurium, Germanium, Silicon, Antimony, Boron, Polonium, Astatine, Selenium, Aluminium, Carbon, Bismuth, Phosphorus, Beryllium, Tin, Sulfur, Livermorium, Iodine, Flerovium, Gallium, Hydrogen, Lead, Moscovium, and Tennessine.

From the metalloids, group 14 has five metalloids – Carbon, Silicon, Germanium, Tin, and Lead, group 15 has four metalloids – Phosphorus, Arsenic, Antimony, and Bismuth, and group 16 has four metalloids – Sulfur, Selenium, Tellurium, and Polonium. Although groups 13 and 17 also have metalloids, the former only has Boron, Aluminium, and Gallium, while the latter only has Iodine and Astatine.

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Lisr the chemical symbol of the elements that are same group

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The correct answer to this question is C.

As you move down an element group (column), the size of atoms increases. This is because each atom further down the column has more protons and neutrons and also gains an additional electron energy shell. Additionally, as you move across an element period (row), the overall size of atoms decreases slightly. Even though atoms further to the right have more protons, neutrons, and electrons, the outer electron shell is the same. The increased number of protons exerts a stronger positive charge, pulling the electrons in toward the nucleus.

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I believe that the symbol S in the Periodic Table is Sulphur.

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An element can’t be broken down any further. They are considered to be the smallest part of matter. The atomic mass of an element is the mass or weight of an element or atom. Inside of the atom are the protons and neutrons. This is what is included in most of the mass of the element. The atomic radius of an element is the distance from the nucleus to the outer layer of the element. Protons and neutrons can be found in the nucleus.

The electrons are located surrounding the atom. So, the atomic radius would be measuring from the protons to the electrons. This distance is measured in picometres. In this situation, the atomic radius can be determined based on the mass of the other elements.

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Depending on what one you studied Hydrogen is in the middle so then it would be Lithium

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The relative formula mass is calculated by adding up all the different atomic masses of the atoms present. The mass needs to be multiplied by the number of atoms present respectively. For instance, as there are 2 oxygen atoms present, it means that we need to multiply 16 by 2 to get 32. Hydrogen has a mass of 1, so 1 multiply by 2 is equal to 2.

There is only one atom of magnesium; hence, we will add the relative atomic mass of the atom, which is 24. Now adding 24, 32 and 2 gives us the value 58. Hence, the relative molecular mass of Mg(OH)2 is 58g.

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B is the answer to this question. This means that the lithium ions will provide one electron each. Then, the nitrogen ion will get three electrons. Chemical bonds may not often be discussed by people especially in normal conversations but it should be remembered that they are important. Without chemical bonds, it will be hard for molecules to stay together.

The different atoms should share and release electrons as needed so that things will work properly. Bonds usually form between atoms with different charges. Chemical bonds come with a lot of energy and may be considered complicated by a lot of people but they are still highly fascinating.

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