Question

3 8:13 pm
In Dobereiner's triad, 23 is the mean
of atomic masses of Li and K. This is
the atomic mass of
1 Na
2 Ca
3 Br
8:13 pm​

Answer 1

Answer:

Na

the answer is sodium (Na)

Answer 2

Answer:

Answer A) Sodium (Na)

Explanation:

According to the Dobereiner traid Li, Na, K average of Li and K is always equal to the Na sodium atomic mass.