Structure of an Atom
What is the center of the atom called?
nucleus
What is the vocabulary word for the number of protons in an atom?
Atomic Number
What is another name for a row on the periodic table?
Period
Give an example of an element.
Answers will vary
What is the pH of an acid?
Below 7
Name the 3 subatomic particles.
protons, neutrons, and electrons
How many protons does Sodium (Na) have?
11
What is another name for a column on the periodic table?
group or family
Is Sodium (Na) or Sodium Chloride (NaCl) a compound? Explain how you know.
Sodium Chloride (NaCl) is a compound because it has 2 elements bonded together.
What is the pH of a base?
above 7
State the charges of each subatomic particle.
Protons = +1
Electrons = -1
Neutrons = 0
How many electrons does Barium(Ba) have?
56
Is Bromine(Br) more like Astatine(At) or Selenium(Se)? Explain.
Astatine(At) because it is in the same group/family as Bromine(Br).
Give an example of a heterogeneous mixture and explain why it is a heterogeneous mixture.
Answers will vary.
Name 2 properties of an acid.
pH less than 7, turns litmus paper red, tastes sour, reacts with metals
State the location of each subatomic particle.
Proton & Neutron = Nucleus
Electron = Electron Cloud
How many neutrons does Tin(Sn) have?
69
Name 2 elements that share similar chemical properties.
Answers will vary but they should be 2 elements in the same group/family
Give an example of a homogeneous mixture and explain why it is a homogeneous mixture.
Answers will vary
What is created when you mix an acid and a base?
water and salt
Draw an atomic model for Fluorine(F).
See Board
How many protons, neutrons, and electrons does Tellurium(Te) have?
Protons: 52
Neutrons: 76
Electrons: 52
What was Dmitri Mendeleev famous for?
Predicting Elements on the Periodic Table that were not found yet
How is a suspension different from a solution?
A suspension has particles in it that are too large to dissolve while a solution has particles in it that dissolve in the liquid.
If a substance has a pH of 1 and another substance has a pH of 9, what pH would result when you combine them?
pH between 1 and 9