In the periodic table, the metallic character of elementsOnly one correct answerA.Decreases from left to right across a period and on descending a groupB.Decreases from left to right across a period and increases on descending a groupC.Increases from left to right across a period and on descending a groupD.Increases from left to right across a period and decreases on descending a group
Question
In the periodic table, the metallic character of elementsOnly one correct answerA.Decreases from left to right across a period and on descending a groupB.Decreases from left to right across a period and increases on descending a groupC.Increases from left to right across a period and on descending a groupD.Increases from left to right across a period and decreases on descending a group
Solution
The correct answer is B. The metallic character of elements decreases from left to right across a period and increases on descending a group in the periodic table.
Here's why:
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Across a Period (Left to Right): As we move from left to right across a period, the number of protons in the nucleus increases, which increases the nuclear charge. This increased nuclear charge attracts the electrons more strongly, reducing the tendency to lose electrons, which is a characteristic of metals. Therefore, the metallic character decreases.
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Down a Group: As we move down a group, the number of energy levels (shells) increases. These additional shells shield the outermost electrons from the nucleus' pull, making it easier for the atom to lose electrons, a characteristic of metals. Therefore, the metallic character increases.
Similar Questions
9. As you move from top to bottom on the periodic table, what generally happens to the metallic character of elements?1 pointIt increases.It decreases.It increases, then decreases.It decreases, then increases.It remains constant.
Which property decreases down a group in the periodic table?
Metals are typically found in Groups _____ to _____ on the Periodic Table
Summarise how the elements are organised on the periodic table. In your answer, you should:State the order in which elements are placed in the table.Define period and group.Describe how the properties of the elements, and therefore their classification as a metal, non-metal or metalloid, changes as you move from left to right across the table.
Which statement best explains how periods on the periodic table are organized? A. increasing atomic number from left to right B. increasing number of neutrons from left to right C. decreasing number of electrons from left to right D. decreasing atomic mass number from left to right
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