Question

What is the primary atomic characteristic that Mendeleev used to organize the periodic table?

A. atomic mass

B. atomic number

C. the number of neutrons in the nucleus

D. the date an element was discovered

A is what i am thinking it is that right

Answer 1

why do you think you can eliminate the other options?

Answer 2

as in take out

Answer 3

yes. which options don't make sense, and can be taken out easily?

Answer 4

hmm D don't look like it make sense

Answer 5

A and B make sense to me

Answer 6

so far so good

Answer 7

do you know anything about the DATES that the particles of the atom were discovered? and when mendeleev made his table?

Answer 8

no could you explain it

Answer 9

when was the neutron discovered?

Answer 10

1932

Answer 11

neutron was not discovered until 1932 when James Chadwick used scattering data to calculate the mass of this neutral particle.

Answer 12

and 1869

Answer 13

Mendeleev's 1869 periodic table

Answer 14

so could mendeleev use the neutrons to put his table together when it wasn't even discovered until 70 years AFTER he published his table?

Answer 15

no

Answer 16

so C must be out, and D must be out. When was the proton discovered?

Answer 17

1920

Answer 18

Ernest Rutherford in 1920

Answer 19

1897

Answer 20

so use the same idea

Answer 21

could explain that a little more please

Answer 22

can mendeleev use the atomic number to organize his table BEFORE the idea of atomic numbers was discovered?

Answer 23

if it was not found yet no

Answer 24

then what's the only option left?

Answer 25

D

Answer 26

D has already been eliminated

Answer 27

SO is mass

Answer 28

so it mass

Answer 29

it is mass. and now you know why

Answer 30

cus it was not founded

Answer 31

thank you so much

Answer 32

it's mass because all the other options make no sense