6 Each orbital can hold up to a) 1 electron b) 2 electrons c) 4 electrons d) 6 electrons
b) 2 electrons
2 In the Bohr model electrons move in fixed paths called a) Orbitals b) Orbits c) Clouds d) Fields
b) Orbits
3 The quantum mechanical model describes electrons as a) Particles in circular paths b) Clouds of probability c) Stationary around the nucleus d) Moving randomly
b) Clouds of probability
7 What are the types of subshells a) s p d f b) a b c d c) n l m s d) 1 2 3 4
a) s p d f
9 The d subshell can hold a maximum of how many electrons a) 6 b) 8 c) 10 d) 14
c) 10
4 The first energy level can hold a maximum of a) 1 electron b) 2 electrons c) 8 electrons d) 18 electrons
b) 2 electrons
5 The second energy level can hold a maximum of a) 2 electrons b) 4 electrons c) 8 electrons d) 18 electrons
c) 8 electrons
12 What does the term principal energy level refer to a) The atom’s nucleus b) The shell number n c) The orbital’s shape d) The number of neutrons
b) The shell number n
8 The p subshell contains how many orbitals a) 1 b) 3 c) 5 d) 7
b) 3
1 Who proposed the quantum mechanical model of the atom a) Niels Bohr b) John Dalton c) Erwin Schrödinger d) JJ Thomson
c) Erwin Schrödinger
11 Which orbitals have dumbbell shapes a) s b) p c) d d) f
b) p
13 The formula for the maximum number of electrons in an energy level is a) 2n b) n² c) 2n² d) n plus 2
c) 2n²
10 Which orbital is spherical in shape a) s orbital b) p orbital c) d orbital d) f orbital
a) s orbital
Your experience on this site will be improved by allowing cookies.