Semester 1 Final exam review 2024 part 2

Front

Which element has a larger atomic radius?

Back

Polonium (Po) has a larger atomic radius than Oxygen (O), Sulfur (S), and Tellurium (Te). Atomic radius increases down a group in the periodic table.

Front

Which element has the highest electronegativity?

Back

Fluorine (F) has the highest electronegativity of all elements, making it the most effective at attracting electrons.

Front

What is an atom that has more protons than electrons called?

Back

An atom with more protons than electrons is called a cation. Cations have a positive charge.

Front

What happens to sulfur, a non-metal, in terms of ion formation?

Back

Sulfur will become an anion by gaining electrons, resulting in a negative charge.

Front

Which pair of elements have similar properties?

Back

Barium (Ba) and Calcium (Ca) have similar properties as they are both in Group 2 of the periodic table.

Front

What is the definition of electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Front

What is a cation?

Back

A cation is a positively charged ion formed when an atom loses one or more electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion formed when an atom gains one or more electrons.

Front

How does atomic radius change across a period?

Back

Atomic radius decreases across a period from left to right due to increasing nuclear charge.

Front

What is the trend of electronegativity in the periodic table?

Back

Electronegativity increases across a period and decreases down a group.