Why does Potassium come after Argon in the Periodic table, even though it has a relative atomic mass which is lower than that of argon?
Thank you. I really need to know.
2007-02-25 23:13:53 · 6 answers · asked by Ayumi.Jung 1 in Science & Mathematics ➔ Chemistry
K has one more proton than Ar. Position in the periodic table is determined by atomic number, not mass.
The reason for the discrepancy is that Ar has 22 neutrons compared to 20 for K.
2007-02-25 23:19:44 · answer #1 · answered by gebobs 6 · 2⤊ 0⤋
Argon Periodic Table
2016-09-30 10:42:29 · answer #2 · answered by ? 4 · 0⤊ 0⤋
1
2016-11-30 20:49:20 · answer #3 · answered by ? 3 · 0⤊ 0⤋
Potassium has one more atom than argon does.
2007-02-26 01:01:55 · answer #4 · answered by smileandclap 1 · 0⤊ 0⤋
the atomis mass of potassium is 19
the atomic mass of argon is 18
the perodic table is arranged according to atomic mass hence potassium comes after argon
2007-02-25 23:24:39 · answer #5 · answered by hermione 2 · 0⤊ 1⤋
potassium has more protons, the periodic table is organized according to atomic number (protons) not atomic mass (weight of one mole in grams).
2007-02-25 23:17:13 · answer #6 · answered by Anonymous · 2⤊ 0⤋