An alp-ha particle is equivalent to the nucleus of a helium atom. Helium Atom = Answer.
It says it will never change. So whatever it was before the change, it will be the same after the change. So, 200 should be correct.
The answer to the question stated above is:
Integrated Pest Management is a method of agricultural pest control that combines chemical and non <span>chemical methods and emphasizes the use of natural toxins and effective pesticide.
>>N</span><span>atural toxins in plants can also be isolated and applied to crops like synthetic pesticides.</span>
Barium nitride
copy the name of the metal as it is written in the periodic table and the first part of the name of the nonmetal (nitrogen) and replace the end by "ide"
