8M Physical Science Packet
Due Monday October 5
Name: ____________________________________
Periodic Table – given the following information, answer each question. Show all your work.
1. A neutral beryllium atom has a mass number of 7. How many protons, electrons, and neutrons
does this atom have?
Protons: __________ Electrons: __________ Neutrons: __________
2. A neutral chlorine atom has 18 neutrons. How many protons and electrons does this atom
have? What is its mass number?
Protons: __________ Electrons: __________ Mass number: __________
3. A neutral atom has 30 protons and 30 neutrons. What kind of atom is this? How many electrons
does it have? What is its mass number?
Atom: __________ Electrons: __________ Mass number: __________
4. A neutral atom has 21 protons and a mass number of 23. What kind of atom is this? How many
electrons and neutrons does it have?
Atom: __________ Electrons: __________ Neutrons: __________
5. A neutral atom has 56 protons and a mass number of 110. What kind of atom is this? How many
electrons and neutrons does it have?
Atom: __________ Electrons: __________ Neutrons: __________
6. A silver (Ag) atom has 46 neutrons. How many protons and electrons does this atom have?
What is its mass number?
Protons: __________ Electrons: __________ Mass number: __________
7. How does atomic radius change as you move left to right across a period? Explain why.
8. How does ionization energy change as you move from top to bottom within a group? Explain,
Ionic Bonding – given each pair of elements, show the charge on each ion, the chemical formula of the
compound they form, and the name of the compound. Show any work.
9. Sodium and fluorine
Ions (with charges): __________ Compound: __________ Name: _______________________
10. Calcium and oxygen
Ions (with charges): __________ Compound: __________ Name: _______________________
11. Lithium and selenium
Ions (with charges): __________ Compound: __________ Name: _______________________
12. Hydrogen and bromine
Ions (with charges): __________ Compound: __________ Name: _______________________
13. Rubidium and chlorine
Ions (with charges): __________ Compound: __________ Name: _______________________
14. Radium and iodine
Ions (with charges): __________ Compound: __________ Name: _______________________
Types of Chemical Reactions – for each reaction, identify the type of reaction and defend your
reasoning. Also answer any subsequent questions.
15. HCl(aq) + NaOH(aq)  H2O(l) + NaCl(aq)
a. Reaction type:
b. Defend your reasoning:
c. What is the name of NaCl?
16. MgO(s) + H2O(l)  Mg(OH)2(aq)
a. Reaction type:
b. Defend your reasoning:
c. What is the name of MgO?
17. Cl2(g) + 2 NaI(aq)  2 NaCl(aq) + I2(s)
a. Reaction type:
b. Defend your reasoning:
c. What is the name of NaI?
d. Are Cl2 and I2 compounds, molecules, compounds, or some combination? Explain.
18. Cu(s) + 2 AgNO3(aq)  2 Ag(s) + Cu(NO3)2(aq)
a. Reaction type:
b. Defend your reasoning:
19. Pb(NO3)2(aq) + 2 KI(aq)  2 KNO3(aq) + PbI2(s)
a. Reaction type:
b. Defend your reasoning:
c. What is the name of KI? PbI2?
20. Li2CO3  Li2O + CO2
a. Reaction type:
b. Defend your reasoning:
c. What is the name of Li2O?
21. C6H12O6(g) + 6 O2(g)  6 CO2(g) + 6 H2O(g)
a. Reaction type:
b. Defend your reasoning:
22. Zn + 2 HCl  H2 + ZnCl2
a. Reaction type:
b. Defend your reasoning:
23. 2 H2 + O2  2 H2O
a. Reaction type:
b. Defend your reasoning: