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Who were each of the following scientists? Democritus Dalton LavoisierMendeleev ThomsonMillikan RutherfordBohr Schrodinger.

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Presentation on theme: "Who were each of the following scientists? Democritus Dalton LavoisierMendeleev ThomsonMillikan RutherfordBohr Schrodinger."— Presentation transcript:

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2 Who were each of the following scientists? Democritus Dalton LavoisierMendeleev ThomsonMillikan RutherfordBohr Schrodinger

3 What are the steps of the Scientific Method?

4 Define homogeneous mixture vs. heterogeneous mixture

5 What are differences between mixtures (homogeneous and heterogeneous) and compounds? Explain how each are made.

6 What is the difference between an element and a compound?

7 What is a chemical formula of a compound? What does it tell you?

8 What are the 5 characteristics seen in chemical reactions?

9 Define Conservation of Mass. How does this pertain to chemical reactions?

10 How do you change a number to scientific notation?

11 What is the difference between precision and accuracy?

12 How many significant figures are in the following numbers? 1.005 2.4 0.000003 405000

13 How do you convert from Kelvin to Celsius? 375 K to o C 29 o C to K

14 How do you determine atomic number?

15 How do you determine mass number (not mass on periodic table – this is average atomic mass!)

16 In a neutral atom, how do the protons and electrons compare? How do the protons and electrons compare in a cation? Anion?

17 Define isotope. How does isotope compare to parent element?

18 How many protons and neutrons are in the following: 50 19 X 67 40 Y

19 What are the 3 rules for electron configurations? Explain each

20 What atomic model is used today? Explain the model fully.

21 How did Mendeleev arrange the periodic table? How is the periodic table arranged today?

22 There are 3 subatomic particle in an atom, which one determines the properties and reactivity of the atom?

23 Where are each of the subatomic particles found in the atom?

24 What is the difference between representative elements and transition metals? (Location)

25 How are ions formed? Explain each type. How do you write an ionic symbol?

26 What is the difference between ELECTRON CONFIGURATION And ORBITAL DIAGRAM

27 How do you determine the electron configuration of an atom? How does the electron configuration change from element to ion?

28 Do metals lose or gain electrons? Do nonmetals lose or gain electrons?

29 How do you calculate average atomic mass? Explain in full detail

30 What is dimensional analysis? Explain how you work out a DA problem

31 Label the different groups of the periodic table.

32 What is the formula for density? Manipulate the formula to solve for mass and for volume.

33 What are 4 trends on the periodic table? Explain each trend (describe using proton numbers, attraction, shielding, energy levels)


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