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WorksheetsChem Formative Assessment
Total questions: 10
Worksheet time: 2mins
What is referred to as the atoms of an element having the same atomic number but different mass number?
ions
molecules
isotopes
compounds
What is an isotope of hydrogen with two neutrons?
protium
deuterium
tritium
technium
What radioactive isotope will the doctor use to diagnose the function of her thyroid gland?
32P
59Fe
131I
198Au
Jose observed a unique object embedded in a rock which could possibly be a fossil. What radioactive isotope will he apply to determine how old the fossil?
C-14
Tc-99
U-235
Pu-238
What is referred to as an atom or group of atoms that has a net positive or negative charge?
atom
ion
molecule
element
What is a type of ion with a positive charge?
cation
anion
minion
nanion
How can a neutral atom become a cation?
when it gains electrons
when it loses electrons
when it shares electrons
when it combines electrons with other atoms
What element in the periodic table has 6 protons and 6 neutrons?
Hydrogen
Oxygen
Carbon
Nitrogen
What is the correct name of this compound - KI ?
Potassium iode
Potassium iodide
Potassium iodine
Potassium iodinoxide
What is the correct name of this compound - AgNO3 ?
Silver nitrate
Silver nitric
Silver nitrite
Silver nitrogenoxide
