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AlladinOne [14]
1 year ago
15

Using the periodic table, complete the table to describe each atom.

Chemistry
1 answer:
OLga [1]1 year ago
4 0

The elements are the arranged in the periodic table in order of increasing atomic number.

<h3>What are the elements?</h3>

The elements are the arranged in the periodic table in order of increasing atomic number. We know that the atomic number refers to the number of protons in the atom. The sum of the number o protons and the number of neutrons in the atom gives the mass number of the atom.

In the case of the first element, there are 7 neutrons and the mass number is 15. Thus the number of protons = 15 - 7 = 8. The element that has atomic number 8 is oxygen (O).

In the second case, the atomic number is 26 is iron. Given that the mass number is 56, there are 30 neutrons and the element symbol is Fe.

Learn more about the periodic table:brainly.com/question/11155928

#SPJ1

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Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.
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Answer:

b

Explanation:

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Which salt is formed by the reaction between hydrochloric acid and sodium hydroxide, write with chemical equation. .​
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Answer:

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castortr0y [4]

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erastova [34]

Answer:

1. Hydrogen

Explanation:

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