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Read This!!
Note the bold "zigzag line" on the right-hand side of the periodic table on the last page. In general, metals (e. g. Mg.
AI, K, Na, Cu, Zn) are found to the left of this line, and nonmetals to the right (e. g. CN. O, CI). A notable exception
is hydrogen, H. Although it's located far to the left, it is classified as a nonmetal. The vertical columns in the periodic
table are called Groups, while the horizontal rows are call periods.
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34. Write the symbol for the element that is in...
a.) Group 1A and period 2: __ b.) Group 2A and period 3: c.) Group 7A and period 2:
35. In what group of the periodic table are the metals lithium (Li), sodium (Na) and potassium (K):
36. What is the charge of lithium and sodium ions?
37. Predict the charge of potassium ions. Explain your reasoning.
38. In what group of the periodic table are the nonmetals fluorine (F), Chlorine (CI) and bromine (Br):
39. What is the charge of fluoride ions?
40. Predict the charge of chloride and bromide ions. Explain your reasoning.
True/False Enter in the space T for true, F for False and correct all false statements to make them true.
41. When metals form ions they tend to lose one or more protons and in the process form ions with a negative
charge
42. When nonmetals form ions they tend to gain one or more electrons and in the process form ions with a
partially filled valence shell.
43.
Tons are less stable than the atoms they are derived from
Tons are less stal
The Chemical Basis of Life: Atomic Structure - Page 7 of 8

anti-human ngf stable cell line (fulranumab) can be provided from creative biolabs.

explanation:

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.

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explanation: