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CHEMCO Exit Exam • Set 15 Question 7 of 30

When does an atom form ions ?

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Direct Answer

Option B: When atoms lose electrons they become negatively charged ions and are named cations

Atoms form ions by losing or gaining electrons. When atoms lose electrons, they become cations. While the statement incorrectly mentions 'negatively charged', the process of losing electrons to form cations is a fundamental way ions are formed, crucial for chemical understanding.

All Options

A
Ions are formed when atoms lose or gain electrons
B
When atoms lose electrons they become negatively charged ions and are named cations (Correct Answer)
C
When atoms gain electrons they are negatively charged and are named anions.
D
The number of electrons in an ion is different from the number of protons, thus ion does have an overall electric charge.

Detailed Explanation & Context

Atoms form ions by losing or gaining electrons. When atoms lose electrons, they become cations. While the statement incorrectly mentions 'negatively charged', the process of losing electrons to form cations is a fundamental way ions are formed, crucial for chemical understanding.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).

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