Bellwork

11/27 - List the parts of an atom.

11/28 -

1. What is the name of the scientist you are researching in Applications?

2. What is another example analogy of the mass ratio between an electron and a proton or neutron?

11/29 - Use ch. 1 of the textbook to find the answer

1. Which two atoms are most common in Earth's crust? in the human body?

11/30 - In a 50kg / 110lb individual, how many kg of each element is present?

• Oxygen -
• Carbon -
• Hydrogen -
• Nitrogen -
• Calcium -

12.3

Give a one sentence description of how your applications scientist progressed Atomic Theory.

12.4 Correct statements that are not true.

1. The atomic number of an atom is the number of protons and neutrons in the nucleus.

2. Isotopes are atoms of the same element, but with a different number of neutrons.

3. When an atom gives up an electron, it becomes an ion with a negative charge.

12.5 - Interpret the periodic table from p20.

1. What color are most of the elements in the table?
2. According to the key at the bottom, what are those elements?
3. How many nonmetals are in the table?
4. Why do you think the lanthanide and actinide series are listed below the others?
5. What role does sequence of numbers play in the periodic table?

12.6 - Match the definition with the terms, - atom, volume, & mass.

1. Measure of how much matter an object contains
2. Smallest particle of an element that has the chemical properties of that element.
3. Amount of space matter takes up.