A teacher's assistant made all of the statements below in class, but as a good chemistry student, you know they are not all correct. Select all statements that are false.
Select one or more:
a. Strontium is an alkaline earth metal.
b. Tungsten is an inner transition metal.
c. The chemical symbol for iron is Ir.
d. Zinc is in period three.
e. Neutral phosphorus has five outer shell electrons.
f. Sodium reacts more violently than lithium.
g. Sulfur and chlorine have the same number of valence electrons.
h. Manganese has 25 protons.
i. All actinides are radioactive.
j. Magnesium is more reactive than sodium
Ok. Valence electrons of elements in period 5 have more energy than those in period 4.
1. Valence electrons of elements in period 2 are usually in energy level 2.
m. Periods are horizontal rows on the periodic table.
n. Valence electrons are farther away from the nucleus in aluminum than they are in Indium.