Is Manganese(III) oxide ionic or covalent?

A. ionic

B. covalent

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?

The biosphere of the earth is made up of . a. inorganic b. organic