When the government closed japan’s doors to the west, it ordered

most europeans to leave the country

trade with korea to stop

trade with china to stop

commodore perry to leave the country

When the government closed Japan’s doors to the West, it ordered most Europeans to leave the country.

It is referred as the Sakoku policy and it was a reaction to the unequal trade treaties forced upon them by the Commodore Perry and its ships.

The Korea and China answers cannot be valid, since they are not part of the "West", being Asian countries as well, plus trade with China was important during that Sakoku policy.

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.