How many atomic orbitals are in d sublevel?

• 2

• 3

• 4

• 5

Among the scientists listed below, who contributes to the development of the quantum mechanical model of the atom, EXCEPT?

• Werner Karl Heisenberg

• Louie de Broglie

• Erwin Schrodinger

• Neils Bohr

In the Bohr theory of atomic structure, the symbol “n” refers to:

• the orbit in which an electron is found

• energy levels

• the total energy of the atom

• the energy of electron

How many valence electrons does Oxygen (O) have?

• 3 valence electrons

• 4 valence electrons

• 5 valence electrons

• 6 valence electrons

Metals can be hammered without breaking because _______?

• They are ductile.

• They are malleable.

• They are brittle.

• They are elastic.

After covalent bonding, what kind of particle is being produced?

• atom

• molecule

• ion

• electron

What is an anion’s charge?

• negative

• positive

• neutral

• depends on the element

What is the name for CO₂?

• carbon monoxide

• carbon oxide

• monocarbon oxide

• carbon dioxide

In most organic compounds, what are the main elements found?

• Carbon, Aluminum and Hydrogen

• Chlorine, Carbon and Hydrogen

• Oxygen, Hydrogen and Carbon

• Carbon, Nitrogen and Oxygen

What organic compound is used by embalmers in preserving dead bodies?

• acetic acid

• formaldehyde

• methyl alcohol

• acetone