WorksheetsAP Chem Unit 1 Quiz
Total questions: 18
Worksheet time: 23mins
Which element below would have the greatest fourth ionization energy? (Hint: The third electron removed would be a core electron.)
Sulfur
Flourine
Neon
Aluminum
The energy needed to remove an electron is called …
electronegativity
ionization energy
electron affinity
atomic radius
Which of the following represents sodium in an excited state.
1s22s22p23s2
1s22s22p63s13p1
1s22s22p63s23p1
Which of the following is responsible for the release of light photons when a firework explodes?
an electron promoted to an excited state at higher energy level
An electron falling from an excited state to its ground state
an electron being removed from an atom
a proton transforming into a neutron
An atom that releases a large amount of energy when it accepts an electron is said to have
a large ……………….
ionization energy
electron affinity
electronegativity
atomic radii
What is the effective charge on the valence electrons of Na+?
+9
+11
+1
+20
A student has a 1g sample of each of the following compounds: NaCl, KBr, and KCl. Which of the following lists the samples in order of increasing number of moles in the sample?
KCl, KBr, NaCl
KBr, KCl, NaCl
NaCl, KBr, KCl
A student obtains a sample of a pure solid compound. In addition to Avogadro’s number, which of the following must the student know in order to determine how many molecules are in the sample?
Mass and volume of sample
Mass of sample and density of sample
Molar mass of compound and mass of sample
Density of sample and molar mass of compound
You can get me for free (no charge), but inside the nucleus I add a lot of weight. What am I?
electron
neutron
This element name comes from the Latin carbo for "charcoal."
hydrogen
carbon
Which of the following best explains why noble gases have very low chemical reactivity?
They have low ionization energies
They have completely filled valence electron shells
They have high atomic radii
They have unpaired electrons in their outer shell
What is the electron configuration of a neutral magnesium atom in its ground state?
1s22s22p63s13p1
1s22s22p63p2
1s22s22p63s2
1s22s22p63s1
Which of the following statements about ionization energy is correct?
Ionization energy generally increases across a period from left to right
Ionization energy decreases as atomic number increases within a period
Ionization energy is always lower for noble gases than for alkali metals
Ionization energy is unrelated to atomic structure
What element has the following mass spec data?
Sulfur
Nitrogen
Oxygen
Carbon
What element has the following mass spec data?
Sulfur
Nitrogen
Oxygen
Carbon
What element has the following mass spec data?
Thulium
Copper
Europium
Zinc
