Question 1

Which of the following best describes the trend in metallic character as you move from left to right across a period in the periodic table?

Accepted Answer

Metallic character decreases.

Question 2

As you move down a group in the periodic table, what happens to the metallic character of the elements?

Accepted Answer

It increases.

Question 3

Which of the following elements would you expect to have the highest metallic character based on its position in the periodic table?

Accepted Answer

Cesium (Cs)

Question 4

Metallic character is defined as:

Accepted Answer

The ease with which an atom loses electrons.

Question 5

Which pair of elements shows the greatest difference in metallic character?

Accepted Answer

Cs and Li

Question 6

Why does metallic character increase as you move down a group?

Accepted Answer

Atoms have more energy levels, making it easier to lose electrons.

Question 7

Which of the following statements is true regarding the periodic trend of metallic character?

Accepted Answer

Metallic character decreases from left to right and increases from top to bottom.

Question 8

Given the elements Sr and Te, which would have the greater metallic character and why?

Accepted Answer

Sr, because it is further to the left and lower in the group.

Question 9

Which of the following best explains why metals are good conductors of electricity?

Accepted Answer

They have loosely held valence electrons that can move freely.

Question 10

A chemist is comparing the metallic character of elements in the same period. Which element would be expected to have the lowest metallic character?

Accepted Answer

The element furthest to the right.

Question 11

Which of the following equations best represents the loss of an electron by a metallic atom?

Accepted Answer

$$\mathrm{M} \rightarrow \mathrm{M}^+ + e^-$$

Question 12

Which of the following real-world applications relies on the high metallic character of certain elements?

Accepted Answer

The use of sodium and potassium in electrical cells due to their ability to lose electrons easily.

Question 13

If you move diagonally from the top right to the bottom left of the periodic table, what general trend do you observe in metallic character?

Accepted Answer

It increases.

Question 14

Which of the following best explains why nonmetals have low metallic character?

Accepted Answer

They tend to gain electrons rather than lose them.

Question 15

Which element would you expect to have a greater metallic character: Mg or Al? Explain your reasoning.

Accepted Answer

Mg, because it is further to the left in the same period.

Periodic Trends: Metallic Character in the Periodic Table

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