Answer:
Astamañana vaya buenas noches
Answer:
3,4
Explanation:
Hydrogen has no other electron hence there is no screening of the valence electron by inner electrons. It is the lightest known element with a relative molecular mass of 2. Screening effect refers to the fact that inner or core electrons prevent the outermost electron from feeling the attractive force of the nucleus.
Answer:
vp jokhimon vf dpp gl fl vk hggjuvg7vvohohohohojj
What is the chemical compound?
