Answer:
alkaline earth metals
Group 2 metals, the alkaline earth metals, have 2 valence electrons, and thus form M2+ ions. The halogens, Group 17 , reach a full valence shell upon reduction, and thus form X− ions
Explanation:
Sound pressure decreases with distance, so there's less sound pressure acting on your ear-drum.
Use a sped o meter enjoy!
The answer is A a change in time