Answer:
190.23g
Explanation:
Osmium is element number 76 on the periodic table, with the atomic symbol "Os." The atomic mass of any element is listed underneath the atomic symbol. Osmium has an atomic mass of 190.23 grams.
<span>Neon is a group 8 element, a noble gas.
<u>D.It will not ionize; it already has an octet of electrons in its valence shell.</u></span>
