Answer:
The element is Magnesium.
Explanation:
On the periodic table, elements are arranged based on atomic number and chemical similarity.
- A group on the periodic table is a vertical column that places elements with very similar chemical characteristics together. For instance, the elements in group 18 are all gases (this group is named the Noble Gases group).
- A period on the periodic table is a horizontal row that places elements that show periodic trends together. They also have very similar characteristics (same amount of subshells that house electrons).
If we look at the periodic table, we will notice that there are eighteen groups and seven periods. And, we can also see that the groups are vertical while the periods are horizontal.
Therefore, if we count two across and three down, we will see the element Mg - atomic number 12. Mg is the element <em>symbol</em>, not the name, so we can look and see that the name of the element is Magnesium.
They form fungi like mushrooms
Answer:
Case 1 (energy level): In an atom, an electron jumps from energy level 1 to energy level 3. ... The energy will increase.
Explanation:
12. Substances
13. Isotopes
14. Atomic
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Explanation:
Elements are distinct substances that cannot be split-up into simpler substances. Such substances are made up of only one kind of atom.
- Elements are classified as pure substances.
- They are homogeneous in all parts.
- They have a definite composition.
- They cannot be split or broken into simpler substances by physical means.
- There are over a hundred known elements.
- Elements are usually symbolized by a capital letter or capital letter followed by a smaller letter derived from the English or Latin or Greek name of the element concerned.
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Element brainly.com/question/2572495
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