Quiz Ions, Isotopes, Atoms
1.Metals in group 1 on the periodic table most commonly form which type of ion?
A . 2– ion
C . 1+ ion
B . 1– ion
D . 2+ ion
2.Use the periodic table to determine which of the following contains 19 protons and 18 electrons.
A. An ion of Calcium
B. An ion of Potassium
C. A neutral Calcium atom
D. A neutral potassium atom
3.Draw the following atoms and ions and complete the blanks
31
31
P
15
P - - - ion
15
Atomic number_____
Neutrons_____
Atomic number_____
Neutrons_____
Mass number_____
Electron
distribution_____
Mass number_____
Electron
distribution_____
Protons_____
Electrons_____
40
Net Charge_____
Protons_____
Electrons_____
40
Ca
20
Net Charge_____
Cation or Anion
Ca ++ion
20
Atomic number_____
Neutrons_____
Atomic number_____
Neutrons_____
Mass number_____
Electron
distribution_____
Mass number_____
Electron
distribution_____
Protons_____
Electrons_____
Net Charge_____
4. An atom of Oxygen has how many valence electrons
Protons_____
Electrons_____
Net Charge_____
Cation or Anion
A. 7
B. 8
C. 6
D. 4
5. What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3?
A.
B.
C.
D.
7 mL
1 g /cm3
735 g/cm3
0.85 g/cm3
6.How many neutrons are in an atom of C-12, C-13, C-14?
A. carbon 12 has 12 neutron ; carbon 13 has 13 neutrons; carbon 14 has 14 neutrons
B. carbon 12 has 6 neutron ; carbon 13 has 6neutrons; carbon 14 has 6 neutrons
C. carbon 12 has 4 neutron ; carbon 13 has 5 neutrons; carbon 14 has 6 neutrons
D. carbon 12 has 6 neutron ; carbon 13 has 7neutrons; carbon 14 has 8 neutrons
7. What is the Density of Object X?
A.
B.
C.
D.
0.25 g/ cm3
2.5 g/ cm3
20.0 g/ cm3
25.0 g/ cm