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Which of the following electron configurations is most likely to result in an element that is relatively inactive?

a filled highest occupied principal energy level

Which of the following elements is a transition metal?


Of the elements Fe, Hg, U, and Te, which is a representative element?


Which of the following elements has the smallest atomic radius?


What is the charge of a cation?

a positive charge

Which of the following statements is true about icons?

Cations form when an atom loses electrons

The metals in Groups 1A, 2A, and 3A ________

lose electrons when they form ions

Which of the following statements is not true about ions?

When a cation forms, more electrons are transferred to it

Why is the second ionization energy greater than the first ionization energy?

It is more difficult to remove a second electron from an atom

In which of the following groups of ions are the charges all shown correctly?

Ca(2+), Al (3+), Br(+)

What is the element with highest electronegativity value?


What is the energy required to remove an electron from an atom in the gaseous state called?

ionization energy

For Group 2A metals, which electron is the most difficult to remove?

the 3rd

Which of the following factors contributes to the decrease in ionization energy within a group in the periodic table as the atomic number increases?

increase in atomic size

Which of the following elements has the smallest first ionization energy?


How many valence electrons are in an atom of phosphorus?


Which of the following elements does not form an ion with a charge of 1+


What is the formula of the ion formed when cadmium achieves a pseudo-noble-gas electron configuration?


Which of the following is a pseudo-noble-gas elecron configuration?


What is the formula of the ion ormed when phosporus achieves a noble-gas electron configuration?


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