Amagnesium atom has 2 valence electrons in its third shell. which is a true statement about what happens when it forms an ion? a. it will lose 2 electrons in order to become stable. b. it will gain 2 electrons in order to become stable. c. it will have more electrons than protons. d. it will be an anion.

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the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.