monoatomic ions

1 which of the following ions would represent the ion of an element from group 2A

A^2+

Z+

Y^3+

X^2-

2 which of the following determines the charge on a monatomic ion formed from a nonmetal

group number -8

8- group

8x group

group number /8

3 which of the following ions came from an atom that lost 2 electrons

O^2-

-Mg^2+

N^3-

Li+

4 which of the following statements is true

metals gain electrons to become caitons

metals lose electrons to become cations

nonmetals lose electrons to become citons

nonmetals gain electrons to become caitons

5 the formula for aluminum flouride is electrically neutral which of the following is the correct formula for this compound which consists of only aluminum and floride ions ?an aluminum ion has 3 positive charges

Al3F

AlF

AlF2

AlF3

 

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