test2packet-3302

test2packet-3302 - Problems Chapter 5 ( To see pages 1-4,...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Problems Chapter 5 ( To see pages 1-4, open the link The Nuclear Atom and run a copy.) 1. Which atoms form diatomic molecules? 2. 4 Ca(NO 3 ) 2 How many Ca____ N______ O______ 3. What is the charge of each: proton, neutron, and electron 4. In an atom, the _______ are always equal to the _________. 5. Atomic number is________________________________________ 6. Mass Number is __________________________________________ 7. What must be the same in atoms of the same element?____________ 8. One way to write a chemical symbol to denote the atomic number and mass number is A/Z. A is _________________ Z is ________________ 9. 19/9 F protons________ neutrons___________ electrons_________ 10. 19/9 F - protons________ neutrons___________electrons__________ 11. Which of these are isotopes: 12/8 X, 12/7 X, 13/8 X 12. Element X is found to exist in nature in three isotopes. 50% with mass number 33.124amu, 20% with mass number 35.221amu, and 30% with mass number 39.546 amu. What number, in four significant digits, should be recorded on the periodic table? 13. 3 Fe 2 (SO 4 ) 3 contains Fe_______ S_________ O________ 14. Ca 2+ with atomic mass of 40 has______protons______neutrons______electrons 15. 67/30 Zn the atomic number is _____ the mass number is ______ 16. A = 103, Z = 44 for an element. protons______neutrons_____electrons_____ 17. What is the atomic number for: O_____ Cl_______ H______ 18. What is the difference between CO and Co? 19. What is in the nucleus and what is its charge?_________________ 20. Which subatomic particle (proton, neutron, or electron) has the least mass? 5
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Answers: 1. H,N,O,F,Cl,Br,I, At 2. 4,8,24 3. proton+, neutron neutral, electron – 4. protons, electrons 5. protons 6. protons + neutrons 7. protons 8. A = mass number Z= atomic number 9. 9,10,9 10. 9,10,10 11. 12/8 X and 13/8 X 12. 33.124(.5) + 35.221 ( .2) + 39.546(.3)= 35.47 13. 6,9,36 14. 20,20,18 15. 30, 67 16. 44,59,44 17. 8,17,1 18. CO is carbon and oxygen, Co is one element cobalt 19. protons and neutrons, positive 20. electron
Background image of page 2
Worksheet Chapter 6: Electron Configurations Write the following configurations by reading them off the periodic table. Answer the questions about each configuration. Element Configuration How many electrons in the outer What will it do energy level (valence electrons) in a reaction Cl _______________________________________________________________________ Zn _______________________________________________________________________ Al _______________________________________________________________________ Se _______________________________________________________________________ Tc _______________________________________________________________________ Rb _______________________________________________________________________ Answer the following questions using the periodic table.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 26

test2packet-3302 - Problems Chapter 5 ( To see pages 1-4,...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online