Answer:
5 neutrons
Explanation:
Both protons and neutrons have a mass of about 1 atomic mass unit (amu). The number in the notation for an isotope is its mass in amu. That means the number is essentially the sum of protons and neutrons in the isotope (electrons don't contribute significantly to the mass).
If lithium has 3 protons, lithium-8 has 8 - 3 = 5 neutrons.
C, exothermic reaction. These types of reaction releases heat so that you can heat up your ready-to-eat meals.
Answer:
which pic...? there is no picture attached to your question
<span>A: It is not an exact representation of the atom, but is close enough to be very useful.
Hope this helps!</span>
Well it is definitely answer B because when light is on for a long time it heats up a lot.the thermometer obviously went up which means the light bulb had more energy and was hotter than the start of it
