C. Saturated
When something is Saturated, it means that it is unable to absorb or dissolve any more of a solute at the given temperature and pressure.
The answer is Strontium(Sr). The reactive increase from right to left. And this element has two valence electrons. So Rb is not correct. Then the very reactive metal is Sr.
Answer:
Substances over 7 are categorized as basic, with 7 being the neutral point. Water has a pH level of 7. Substances with pH levels under 7 are categorized as acidic. Vinegar is acidic.
Explanation:
You can change it a little if you want. Hope this helps!
They have the same number of protons and electrons
Positron emission gives a new nucleus with the same mass number but an atomic number that is one less than the old one. Electron emission gives an atomic number that is one greater. Both positrons and electrons are β particles. A positron is the antimatter counterpart of an electron