NEW
Font size
WorksheetsTest 2 Practice
Total questions: 70
Worksheet time: 1hrs 4mins
noble gases
The nucleus of an atom contains which subatomic particles?
protons and electrons
protons and neutrons
electrons and neutrons
protons, electrons, and neutrons
Typically in an atom, which two subatomic particles are equal in number?
protons and neutrons
all subatomic particles are equal in number
neutrons and electrons
protons and electrons
When an atom loses an electron, it becomes a
positive ion
negative ion
neutral ion
neutral atom
What is the average mass of this element?
The atomic mass of an element is the ___.
average of the mass number and the atomic number for the element
weighted average of the masses of the isotopes of the element
total mass of the isotopes of the element
total number of subatomic particles in the nucleus
Calculate the average atomic mass of the element iron (Fe) using the following data:
[Isotope / % abundance]
[Iron 54 / 6% ] [Iron 56 / 92% ] [ Iron 57 / 2% ]
53.7 amu
54.9 amu
5592.0 amu
55.9 amu
1s22s22p63s23p64s23d10
1s22s22p63s2
Choose the correct shortcut configuration for iodine.
[Ar]4s24d104p5
[Kr]5s24d105p5
[Xe]5s25d105p5
none of the above
Cr3+ O2-
Al3+ O2-
How do you know the charge for a transition metal?
look at the anion
look at the Roman Numeral in the name
look at the subscript for the anion
all of the above
What is the correct name for this polyatomic ion: NO3–
carbonate
hydroxide
nitrite
nitrate
What is the correct name for this polyatomic ion: PO43–
phosphorus tetroxide
phosphate
sulphate
hydroxide
What is the correct formula for the polyatomic ion called ammonium?
NH3+
NH3
CN+
NH4+
