Semester 1 Final Review R

Front

What is the formula for copper(I) sulfate?

Back

Cu2SO4

Front

Different versions of an element, with different numbers of neutrons, and therefore different masses, are called _____

Back

isotopes

Front

What is the correct formula for dinitrogen tetroxide?

Back

N₂O₄

Front

What shape will a molecule with a trigonal pyramidal geometry be?

Back

trigonal pyramidal

Front

Find the element that has 3 Valence Electrons and 2 energy levels. Type the symbol for the element (not the name)

Back

B

Front

What is the definition of an isotope?

Back

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms, influencing the chemical properties of the element.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is the molecular geometry of a molecule with four bonding pairs and no lone pairs?

Back

tetrahedral

Front

What is the formula for calculating the number of neutrons in an atom?

Back

Number of Neutrons = Atomic Mass - Atomic Number