Atoms of which pair of elements will form ionic bonds in a compound A. I and F
B. Be and Cl
C. Ag and Ca
D. Na and Al

be and ci is correct

Explanation:

a p e x

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.