<span>Other than rain what kinds of precipitation are there, the following includes: snow, hail, sleet. Precipitation refers to any things that falls down brought by a natural phenomenon because of a chemical reactions and settles to the bottom of a solution. The higher the degree of the precipitation, the bigger the area has that source.</span>
The disease can slow the predator down and the prey can get away easily.
Answer: A=7 for the isotope with 4 neutrons.
Explanation:A lithium atom contains 3 protons in its nucleus. Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always Z = 3. The mass number, however, is A = 6 for the isotope with 3 neutrons, and A = 7 for the isotope with 4 neutrons.
<span>In the lower left corner of the Periodic table are elements of the Group 1 and they are called Alkali metals. The Alkali metals are highly reactive elements that readily lose their outmost electron to form cations with charge +1. The elements are: rubidium ( Rb ), caesium ( Cs ) and francium ( Fr ). Answer : 1 ) Metals
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