Question

There are three stable forms of neon: neon-20, neon-21, and neon-22. Which statement is true?(1 point)
Responses

Their number of protons differ.
Their number of protons differ.

The number of neutrons are the same.
The number of neutrons are the same.

Their atomic masses differ.
Their atomic masses differ.

They are radioactive, like all isotopes.
Answer
Beryllium has an atomic number of 4. How many neutrons does the isotope beryllium-9 have?(1 point)
Responses

13
13

5
5

4
4

9
Answer
Where do you find the atoms with the largest atomic radius on the periodic table?(1 point)
Responses

the upper right
the upper right

the upper left
the upper left

the lower right
the lower right

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

Mg; it takes more energy to pull two electrons away from magnesium(Mg) than it does to take them from chlorine(Cl).
Mg; it takes more energy to pull two electrons away from magnesium(Mg) than it does to take them from chlorine(Cl).

Cl; it takes less energy to add an electron to a valence shell that is nearly full.
Cl; it takes less energy to add an electron to a valence shell that is nearly full.

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

Mg; magnesium has more valence electrons than chlorine.
Answer
How does the Coulomb force affect charge interactions?(1 point)
Responses

Like charges repel, and opposite charges attract.
Like charges repel, and opposite charges attract.

Like and opposite charges repel.
Like and opposite charges repel.

Like charges attract, and opposite charges repel.
Like charges attract, and opposite charges repel.

Like and opposite charges attract.
Answer
are u sure these are right
Answered by GPT 3.5
Their atomic masses differ.
Answered by GPT 3.5
5
Answered by GPT 3.5
the bottom left corner
Answered by GPT 3.5
Cl; it takes less energy to add an electron to a valence shell that is nearly full.
Answered by GPT 3.5
Like charges repel, and opposite charges attract.
Answered by GPT 3.5
I apologize for the mistake in the previous response. The correct answer is: Like charges repel, and opposite charges attract.