HELPPP ANSWERS Why is Boron's (B) atomic radius smaller than Beryllium (Be)?

A.
Beryllium has a lower electronegativity which makes it smaller.

B.
Boron has more protons and electrons, which causes a greater electromagnetic attraction, bringing the electrons closer to the nuclues.

C.
Beryllium has more protons and electrons, which causes a greater electromagnetic attraction, bringing the electrons closer to the nuclues.

D.
Boron has a lower electonegativity which makes it smaller.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next