Which has a higher ionization energy: chlorine (Cl) or magnesium (Mg)? Why? Select the best answer.(1 point)

Question

Responses:
Cl; it takes much more energy to pull an electron away from a valence shell that is nearly full.
Mg; it takes more energy to pull two electrons away from magnesium(Mg) than it does to take them from chlorine(Cl).
Mg; magnesium has more valence electrons than chlorine.
Cl; it takes less energy to add an electron to a valence shell that is nearly full.

Answer 1

The best answer is:

Cl; it takes much more energy to pull an electron away from a valence shell that is nearly full.

Chlorine has a higher ionization energy than magnesium because chlorine has six valence electrons and is one electron short of a full octet, while magnesium has two valence electrons and is more willing to lose those electrons to achieve a stable electron configuration. Thus, it takes more energy to remove an electron from chlorine than from magnesium.

Answer 2

Where do you find the atoms with the strongest metallic properties on the periodic table?(1 point)
Responses:
the lower left
the upper right
the upper left
the lower right

Answer 3

The correct response is:

the lower left

In the periodic table, metallic properties tend to increase as you move down a group and to the left across a period. Therefore, atoms with the strongest metallic properties are found in the lower left corner of the periodic table.

Answer 4

What is unique about how the periodic table of the elements is organized?(1 point)
Responses:
Elements are in order so that each element has an atomic mass that is 1 greater than the previous element.
Elements are grouped by multiples of atomic number.
Elements with similar properties are grouped together in a pattern.
Elements are in order according to the number of neutrons in their nucleus.

Answer 5

The correct response is:

Elements with similar properties are grouped together in a pattern.

The periodic table is organized by atomic number and grouped so that elements with similar chemical properties and behaviors are placed in the same columns (groups or families), creating a pattern based on their electron configurations.

Answer 6

How does the Coulomb force affect charge interactions?(1 point)
Responses:
Like charges attract, and opposite charges repel.
Like and opposite charges repel.
Like charges repel, and opposite charges attract.
Like and opposite charges attract.

Answer 7

The correct response is:

Like charges repel, and opposite charges attract.

This statement accurately describes the behavior of electric charges according to Coulomb's law, which states that like charges (e.g., two positive charges or two negative charges) will repel each other, while opposite charges (e.g., a positive charge and a negative charge) will attract each other.