Who am I?

Front

What is the oxidation number of indium in period 5?

Back

+3

Front

What element is a metalloid with 5 valence electrons in period 4?

Back

Arsenic

Front

Which element in period 3 has 4 valence electrons?

Back

Silicon

Front

What is the unreactive element found in period 6?

Back

Radon

Front

What is the term for a vertical column in the periodic table?

Back

Group

Front

What are the main groups of elements in the periodic table?

Back

Alkali metals, alkaline earth metals, transition metals, halogens, noble gases.

Front

What is the significance of valence electrons in determining chemical properties?

Back

Valence electrons determine how an element reacts chemically with other elements.

Front

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

Back

Electronegativity increases from left to right across a period.

Front

What is the general trend of atomic radius down a group in the periodic table?

Back

Atomic radius increases down a group.

Front

What is the difference between metals, nonmetals, and metalloids?

Back

Metals are good conductors of heat and electricity, nonmetals are poor conductors, and metalloids have properties of both.