Question

The new element Matadorium (Ma) has three isotopes: Ma-284 (34.60%), Ma-285 (21.20%),

and Ma-288 (44.20%). What is its average atomic mass?

Answer 1

I believe it’s 284.45

Step-by-step explanation:

Because my friend just helped me and she said it was this but again I am not totally sure if it’s right.