Lesson 1.3 - Practice: Periodic Table

Lesson 1.3 - Practice: Periodic Table

Read "Think About It" and "What to Do" parts of Investigation 2-A on page 28.

Chart Question:  Here is the chart for you to complete.

Element Name	Symbol	Period	Group	Metal or Non-metal
chromium
		4	17
	P
		1	18
bohrium		7
			15	metal
			14	non-metal
tin
	Cl
	Nb		5

 

Now, answer the "Analyze" questions 1 to 4 on page 28 of your textbook.

Then, return here to continue this lesson.

 

 

 

 

 

 

 

 

 

 

 

Answers to Questions:

Chart Question:

Element Name	Symbol	Period	Group	Metal or Non-metal
chromium	Cr	4	6	metal
bromine	Br	4	17	non-metal
phosphorus	P	3	15	non-metal
helium	He	1	18	non-metal
bohrium	Bh	7	7	metal
bismuth	Bi	6	15	metal
carbon	C	2	14	non-metal
tin	Sn	5	14	metal
chlorine	Cl	3	17	non-metal
niobium	Nb	5	5	metal

 

Question 1. It should have been easier to complete the table when you were given the element number.

Question 2. All metals are on the left side of the staircase line.

Question 3. You read the periodic table like a graph. The element is located at the intersection of the period and group numbers.

Question 4. There are many possible patterns.  The most obvious is that the mass of the elements increases as the atomic number increases.

Now, do assignment 2A.  Please page forward to access the computer-scored assignment.

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