Mountain chain makes an arc through slovakia ukraine and romania

Carpathian Mountain Range

Explanation:

The Carpathian Mountain Range is a mountain range that stretches in part of Central and Eastern Europe, with the majority of it being in the territory of Slovakia, Ukraine, and Romania, and very small parts of it being in Czechia, Poland and Serbia. These mountains are covered with very old, dense temperate forests. Even though this range is one of the largest by area in Europe and with length of around 1,500 km, it is not one of the highest, with the highest elevation being 2,655 meters. These mountains are still not very affected by the human activity, and large portion of them remain untouched, and the fact that there's very little population on them helps a lot in their preservation. These mountains are famous for their beautiful nature, rich flora and fauna, numerous castles including the one of Dracula (Vlad the Impaler)

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.

the awnser is a

it is not b or c