According to the periodic table, which statement correctly describes the change from a neutral atom of an element to its ion?

Question

A. A Lithium atom forms a Li+1 ion by losing one electron.

B. A fluorine atom forms a F-1 ion by losing one electron.

C. A magnesium atom forms a Mg+2 ion by gaining three electrons.

D. A phosphorus atom forms a P-3 ion by losing three electrons.

choose the correct answer

Answer 1

The correct answer is:

A. A Lithium atom forms a Li+1 ion by losing one electron.

Here's a brief explanation for each option:

• A. True. Lithium (Li) has 3 electrons. When it loses one electron, it forms a Li+1 ion.
• B. False. Fluorine (F) has 7 electrons. It gains one electron to form the F-1 ion, not loses one.
• C. False. Magnesium (Mg) has 12 electrons. It loses two electrons to form the Mg+2 ion, not gains three.
• D. False. Phosphorus (P) typically gains three electrons to form the P-3 ion, not loses three.

Thus, option A is the only correct statement.