The number of protons in an element is the atomic number of the element, and it is not affected by the charge on the element. Hence, the species which has similar Number of proton is Fe²⁺
To know the species which the same number of protons as Fe³⁺, we need to obtain the <em>atomic number of the elements on the periodic table</em> :
- Fe³⁺, Atomic number = 26; Number of protons = 26
- Mn³⁺, Atomic number = 25; Number of protons = 25
- Co²⁺, Atomic number = 27; Number of protons = 27
- Fe²⁺, Atomic number = 26; Number of protons = 26
- Ni, Atomic number = 28; Number of protons = 28
Therefore, only Fe²⁺ has the same number of protons as Fe³⁺
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Explanation:
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<u>ANSWER:
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Until the late 1800s, the purpose of secondary education in the US was a basic one where the children under all age groups were taught in a common room in the school. The students of secondary classes are meant to teach the primary ones.
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- It has also been said that until the late 1800s, girls and minorities were not given admission to high schools for secondary education.
- During the late 1800s, Boston opened a public high school for girls so that women acquired an opportunity to learn secondary education.
