Chemistry chapter 3
Give the ground state electron configuration for Mg2⁺.
1s22s22p6
Give the complete electronic configuration for Mn.
1s22s22p63s23p64s23d5
Predict the charge that a calcium ion would have.
2+
Predict the charge that an ion formed from sulfur would have.
2-
How many valence electrons does an atom of Al possess?
3
Predict the charge that an aluminum ion would have.
3+
Choose the valence orbital diagram that represents the ground state of Zn.
4s and 3d
How many valence electrons do the halogens possess?
7
How many valence electrons do the noble gases possess?
8
No two electrons can have the same four quantum numbers is known as the
Pauli exclusion principle
Give the ground state electron configuration for Se.
[Ar]4s23d104p4
Give the ground state electron configuration for Br⁻.
[Ar]4s23d104p6
Identify an anion.
an atom that has gained an electron
Identify a cation.
an atom that has lost an electron
Semiconductors are
metalloids
The Pauli Exclusion Principle states that
no two electrons in the same atom can have the same four quantum numbers.
Neon belongs to the ________ group of the periodic table.
noble gas
Which of the following does NOT describe a metal?
tends to gain electrons
Which of the following elements is NOT a metal?
xe
How many valence electrons do the alkali metals possess?
1
Predict the charge that an ion formed from sodium would have.
1+
Only two electrons, with opposing spins, are allowed in each orbital is known as the
Aufbau principle.
Which of the following elements is a lanthanide?
Ce
Choose the statement that is TRUE.
Core electrons effectively shield outer electrons from nuclear charge.
Which of the following statements is FALSE?
The alkali metals are fairly unreactive.
Which of the following elements is a actinide?
U
Which element is diamagnetic?
Zn
Which of the following elements is a good conductor of heat and electricity?
copper
The ________ is a change in energy associated with gaining an electron in the gaseous state for an atom or ion.
electron affinity
