How do the inner electron shells of an atom differ from the outer electron shells?

The outer shells can hold more electrons than the inner shells

Which of the following is a true statement about ions?

Removing an electron from an atom requires energy

Fluorine is an element located on the right side of the periodic table of elements. What can you say about fluorine?

Its valence shell is nearly full.

Water is sometimes described as the "universal solvent." Why do you think people say this about water?

It means that water can break the bonds that hold many substances together

Which of the following is a true statement about atomic nuclei?

They have a net (overall) positive charge

What can you infer about elements located in the middle of the periodic table?

They tend to form ions less often than elements on the edges of the table

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BrainPOP: Ions

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Answers

1
How do the inner electron shells of an atom differ from the outer electron shells?
The outer shells can hold more electrons than the inner shells
The electrons in the outer shells orbit the nucleus at slower speeds
Electrons in the outer shells have negative charges; but inner ones don't
Electrons in the inner shells are gained/lost more often than outer ones
2
Cations tend to have:
High valence
Positive valence
Neutral valence
Negative valence
3
Which of the following is a true statement about ions?
Removing an electron from an atom requires energy
No energy is transferred when an atom gains or loses an electron
Gaining & losing protons uses less energy than gaining and losing electrons
When an atom gains an electron, it loses energy
4
An atom with one electron in its valence shell will tend to:
Become positively charged
Become negatively charged
Accept electrons from other atoms
Accept protons from other atoms
5
How is table salt (sodium chloride) different than the ions that make it up?
It has a net positive charge.
It has a neutral charge.
It contains no electrons.
It has a net negative charge.
6
Fluorine is an element located on the right side of the periodic table of elements. What can you say about fluorine?
It tends to have a positive valence.
It tends to donate electrons to other atoms.
It tends to form cations.
Its valence shell is nearly full.
7
Water is sometimes described as the "universal solvent." Why do you think people say this about water?
It means that water usually has a neutral charge
It means that water dissolves electrons
It means that water can make dangerous substances harmless
It means that water can break the bonds that hold many substances together
8
Which statement best describes why sodium and chlorine form bonds so frequently?
Objects in motion tend to remain in motion.
What goes up must come down.
Opposites attract.
A closed system can neither gain nor lose energy.
9
Which of the following is a true statement about atomic nuclei?
They have a net (overall) positive charge
The atomic nucleus has no relation to an atom's mass
Every atomic nucleus has the same number of particles
They are made up of protons, neutrons, and electrons incorrect answer
10
What can you infer about elements located in the middle of the periodic table?
They tend to have positive charges
They tend to have completely full valence shells
They tend to form ions less often than elements on the edges of the table
They tend to have very large atomic masses

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