Using a cathode ray tube, Thomson confirmed that O atoms must have an overall positive charge.
atoms are made of particles that have a negative charge.
O electrons in atoms must have varying amounts of energy.
electrons are only found in the nucleus.

Help?? Anyone pls

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

the answer is barium and copper bromide

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock