A straight line on a distance va time graph represents constant speed
What I think is the charge of nucleus is the proton+neutron
PbH4 will be formed as a result of a polar covalent bond between the H and the Pb.
Since H is more electronegative than the Pb, it is, thus, expected that the H would be able to pull the electron charge towards itself. This will result in the H being negative.
Based on this:
PbH4 would be expected to <span>have polar covalent bonds with a partial negative charges on the H atoms. </span>
Mechanical energy<span> of </span>an object<span> can be the result of </span>its<span> motion
i think
</span>