Within a period, elements with lower atomic numbers require less energy to remove an electron from the atom because the atoms have higher effective nuclear charge.Determine if each statement is true or false.?
true...
because as we go towards right along a period in a periodic table the effective nuclear charge increases (as no. of proton increases)...so the electrons of the outer shell are more firmly held by the nucleus and thus greater energy is required to pull out an electron....
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