Module 5 Test--Periodicity, the Periodic Table, Periodic Trends

Front

What is electronegativity?

Back

Electronegativity is the measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which element is the most electronegative on the periodic table?

Back

Fluorine (F) is the most electronegative element on the periodic table.

Front

What is the trend of electronegativity across a period in the periodic table?

Back

Electronegativity increases from left to right across a period.

Front

What is the trend of electronegativity down a group in the periodic table?

Back

Electronegativity decreases as you move down a group in the periodic table.

Front

Why do atoms form ions?

Back

Atoms form ions to achieve a full valence shell, typically consisting of 8 electrons (octet rule).

Front

What is the relationship between atomic size and electronegativity?

Back

As atomic size decreases, electronegativity increases because the nucleus can attract electrons more effectively.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons, leading to stability.

Front

How does the positive nuclear charge affect electronegativity?

Back

A higher positive nuclear charge increases an atom's ability to attract electrons, thus increasing its electronegativity.

Front

What are nonmetals and how do they relate to electronegativity?

Back

Nonmetals are elements that typically have high electronegativities and tend to gain electrons in chemical reactions.

Front

What is the sequence of increasing electronegativity for the elements Ag, Sn, and I?

Back

The sequence of increasing electronegativity is Ag < Sn < I.