What happens to a river that’s is blocked from a landslide?
A. It creates a lake and causes the river behind the landslide to flood the land
B. It creates a crater that absorbs all the water
C. Landslides don’t happen near rivers
D. It only floods for a little while

Ithink is a because if say increased in electronegativity

Most elements have more than one naturally occurring isotope. as you learned previously, the atoms of those isotopes have the same atomic number (number of protons), making them belong to the same element, but they have different mass numbers (total number of protons and neutrons) giving them different atomic masses. so which mass is put on the periodic table for each element? is it the most common isotope’s mass? the heaviest mass? this activity will answer that question.