Question 36 Review
0
Which isotopic notation identifies a metalloid that is matched with the corresponding number of protons
in each of its atoms?
1.
24 Mg and 12 protons
2.
28 Si and 14 protons
3
75 As and 75 protons
4.
80Br and 80 protons
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In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.