Select all that apply. Reactions between atoms occur when:

an atom seeks to balance its positive and negative charges
an atom seeks to fill its outer shell of electrons
the reaction will result in paired electrons

an atom seeks to balance its positive and negitive charges.

Explanation:

Reactions between atoms occur when:

1. AN ATOM SEEKS TO FILLS ITS OUTER SHELL OF ELECTRONS

2. AN ATOM SEEKS TO BALANCE ITS POSITIVE AND NEGATIVE CHARGES.

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its many islands, high mountains, and remote peninsulas isolated population centers.

some women in the middle and upper classes worked as doctors, government officials, or priestesses. both women and men enjoyed a better quality of life the higher they were on the social pyramid. the egyptians believed that their class system created a stable, well-ordered society. each group had its own role to play.