Section 6.1 and Crash Course Periodic Table

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25 questions
2

Why did chemists begin to organize known elements?

2

In the late 1700's, how many elements were known at the time.

2

Dmitri Mendeleev is accepted to which university?

2

By 1860, how many elements were known?

2

Early ways the elements were organized was by this property.

2

Group IA is also known as this set of metals.

2

Alkaline earth metals are know as Group _____.

2

According to early scientists patterns repeated every ________ number of elements.

2

In reality, elements repeat patterns every __________ number of elements.

2

Transition metals are.....

2

What does malleable mean?

2

How did John Newlands organize his elements?

2

According to table 6.1 and Lavoisier's table of simple substances, which of the following substances were considered Earths?

2

What group do the elements He, Ne, Ar, Kr, Xe and Rn belong?

2

Besides being obsessive with his periodic table, what concept helped him establish his periodic table?

2

What did Mendeleev deny existed, but is accepted by today's scientists?

2

Which element has been known for thousands of years.

2

Which scientist published a classification with the known elements as triads.

2

Which two elements did Mendeleev predict which were found in 1875 and 1886?

2

How is the modern periodic table organized?

2

What is another name for rows in the periodic table?

2

What is another name for the columns in the periodic table?

3

What are the three broad classes of elements in the periodic table?

2


Is this a row or a column?

2

The statement that there is a periodic repetition of chemical and physical properties of the elements when the are arranged by increasing atomic number is called the ___________________.