Ion Charges for Period 2 Metals

Steps:

• Identify Period 2 metals: lithium (Group 1) and beryllium (Group 2) on the left side.
• Metals lose electrons to achieve stable electron configurations, forming positive ions (cations).
• Lithium loses 1 electron for +1 charge; beryllium loses 2 for +2 charge.
• Compare to statements: charge matches group number (1 correct); charges are positive, not negative (2 incorrect).

Why B is correct:

• Group 1 and 2 metals form cations with charges equal to their group numbers to complete octet, per ionic bonding rules.

Why the others are wrong:

• A includes statement 2, but left-side ions are positive, not negative.
• C selects only 2, but statement 2 is false for metals.
• D claims both false, but statement 1 holds for these elements.

Final answer: B