What question there’s no question on here
The major visible difference between<span> the two are crystal size, </span>intrusive rocks<span> have a larger crystal/grain texture due to the slow cooling of magma below the earth surface which encourages the growth of larger crystals, while </span>extrusive rocks<span>, because of the rapid cooling at/above the earth's surface does the opposite. Hope I helped</span>
Mercury-199 is composed of 80 protons, 119 neutrons, and 80 electrons.
If it gains an electron it will be negatively charged and if it loses an electron it will be positively charged
