Why is argon obtained before oxygen?

Answer 1

The modern periodic table is sorted by ascending atomic number, not mass number. Argon is heavier but has 18 protons, Potassium has 19. Same deal with Tellurium and Iodine. The table was originally laid in increasing mass but it was discovered that the properties of the elements varied periodically when they were sorted according to the number of protons.

Answer 2

Argon and potassium are reversed on the Periodic Table. The order in the periodic table is always based on the number of protons in the nucleus. In some cases, elements were placed on the table based on their similarities in properties rather than their atomic masses and this is the case with argon and potassium.

Answer 3

An argon atom has one less proton than a potassium atom.

Potassium and argon have several isotopes (atoms that have different numbers of neutrons).

Nearly all argon atoms are the isotope with 22 neutrons.

By far the most common isotope of potassium has only 20 neutrons.

The result is that potassium has a lower Atomic Mass (or atomic weight) than argon, despite having the extra proton.

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Answer 4

It eats less than argon and no junk foods.

Answer 5

because the number of protons

Answer 6

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