Unit 1 review for the final

Front

What is the electron configuration of P^3-?

Back

3p⁶

Front

How many arrows are in the orbital diagram for the 3rd energy level (s and p) of S^2-?

Back

6

Front

In which directions does electronegativity decrease on the periodic table?

Back

Electronegativity decreases to the left and down.

Front

Back

Rf (Rutherfordium)

Front

Name an element that has 6 valence electrons.

Back

Oxygen, Sulfur, Selenium, Tellurium, Polonium.

Front

What is the maximum number of electrons in the 3rd energy level?

Back

18 electrons.

Front

Define electronegativity.

Back

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

Front

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

Back

Atomic radius increases down a group and decreases across a period.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an element's chemical properties and reactivity.

Front

What is the shape of the s orbital?

Back

The s orbital is spherical.