The position of an element on the periodic table help scientists predict the number of electrons an atom will gain or lose during ion formation according to the periodic table of elements which element is most likely to gain two electrons when it forms an ion? A. Calcium
B. Mercury
C. Oxygen
D. Iodine

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station