FEU-Chem Quiz 3A

True/False: Hund's rule describes the velocity of a particle rotating around the nucleus.

• T

• F

Answer explanation

Hund's rule says the orbitals must fill out singly before pairing up.

True/False: There are 10 orbitals available in the p-block.

• T

• F

Answer explanation

p-block = 6 orbitals

True/False: Hydrogen's configuration is 1s²

• T

• F

Answer explanation

Hydrogen has an atomic number of 1, its configuration is 1s¹

True/False: The proton number is always equivalent to the atomic number.

• T

• F

Answer explanation

Hydrogen has an atomic number of 1, its configuration is 1s¹

True/False: A neutral particle has an atomic number of 10. This means its electron number is also 10.

• T

• F

Answer explanation

Hydrogen has an atomic number of 1, its configuration is 1s¹

Determine the mass number.

(a)  

Determine the atomic number.

(a)  

Determine the neutron number.

(a)  

The nuclide structure shown has an electron number of

(a)  

If the symbol has a charge of +4, the electron number would become

(a)