Homework answers / question archive / California State University, Northridge BIO 101 CHAPTER 2 1)The formation of ions involves the:   A common application of PET scans is to search for                                                      Which of the following results from an unequal sharing of electrons between atoms?   Complete each statement with its correct definition   Which one of these shows the correct order, in INCREASING sizes of particles?   Fill in the blanks to make each statement correct If atoms have the same number of                                     but different numbers of                   , one of them must be an ION of the same element – If atoms have the same number of                                     but different numbers of                   , they must be different ELEMENTS – If atoms have the same number of                                     but different numbers of                   , they must be different ISOTOPES of each other   Complete each statement with its correct definition Two or more atoms of the SAME OR DIFFERENT elements, held together by chemical bonds

California State University, Northridge BIO 101 CHAPTER 2 1)The formation of ions involves the:   A common application of PET scans is to search for                                                      Which of the following results from an unequal sharing of electrons between atoms?   Complete each statement with its correct definition   Which one of these shows the correct order, in INCREASING sizes of particles?   Fill in the blanks to make each statement correct If atoms have the same number of                                     but different numbers of                   , one of them must be an ION of the same element – If atoms have the same number of                                     but different numbers of                   , they must be different ELEMENTS – If atoms have the same number of                                     but different numbers of                   , they must be different ISOTOPES of each other   Complete each statement with its correct definition Two or more atoms of the SAME OR DIFFERENT elements, held together by chemical bonds

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Water is good at dissolving                            molecules-

Water molecules join to form droplets, so we say water has the property of being        –

Olive oil consists of molecules that are                                             and don't mix with water

 

10. Phosphorus has an atomic number of 15, so what is the distribution of its electrons in an uncharged atom?

 

11. An atom's nucleus is composed of:

 

12. What type of bond is easily disrupted in aqueous solutions?

 

13. Identify the acids and bases

 

 

14. A single covalent chemical bond represents the sharing of how many electrons?

 

 

15. Which four elements make up approximately 96% of living matter?

 

16. The part of the atom that has the greatest biological interest and influence is the

 

17. Which of the following represents a molecule characterized by polar covalent bonding?

 

18. If you heat up a bar of iron in a fire until it glows, the light emitted from the iron is caused by ....