4)  an atom of an element with two valence electrons reacts with two atoms of an element with atomic number 17 to form an ionic compound. what is the compound most likely formed as described?

Who is better, messi or cristiano, i need this for a chemistry class. asap

In 2002, the rare earth elements mine in mountain pass, california was closed because

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has: