Question

Is my answer is right or app's answer is right??​

Answer 1

Answer:

App's right

Explanation:

INBOX POWER

Suravi88 ❤

Answer 2

Answer:

Mark it as brainliest

Explanation:

d All of these is right.

Because the main demerit of Mendeleevs table was of isotope as he arranged it using atomin mass.

While Henry Moseley fixed it by arranging them in atomic number so that isotopes also get included in the same block.