Substances
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Questions and Answers

Elements are pure substances that are made up of only one type of ______.

atom

The basic components of living matter are ______ and compounds.

elements

Oxygen is a vital ______ that supports plant and animal life.

element

There are currently 118 known ______, most of which are metals.

<p>elements</p> Signup and view all the answers

Elements that have similar properties are aligned in vertical columns called ______ or families and horizontal arrangements are known as ______.

Signup and view all the answers

Elements are pure substances that are made up of only one type of ______.

<p>atom</p> Signup and view all the answers

There are currently 118 known ______, most of which are metals.

<p>elements</p> Signup and view all the answers

Elements that have similar properties are aligned in vertical columns called ______ or families and horizontal arrangements are known as ______.

Signup and view all the answers

Elements have abbreviations, called ______ symbols.

<p>element</p> Signup and view all the answers

[Blank] is a vital element that supports plant and animal life.

<p>Oxygen</p> Signup and view all the answers

Eleven (11) elements have chemical symbols that bear no relationship to the element's English-language ______.

<p>name</p> Signup and view all the answers

They cannot be further broken down into simpler ______.

<p>substances</p> Signup and view all the answers

The ______ letter of a chemical symbol is always capitalized and the second is not.

<p>first</p> Signup and view all the answers

Which of the following is true about elements?

<p>They are made up of only one type of atom</p> Signup and view all the answers

What is the total number of known elements?

<p>118</p> Signup and view all the answers

What is the arrangement of elements with similar properties called?

<p>Groups</p> Signup and view all the answers

What are the abbreviations of elements called?

<p>Element symbols</p> Signup and view all the answers

What is the first letter of a chemical symbol always capitalized?

<p>To distinguish it from the second letter</p> Signup and view all the answers

Which of the following is true about compounds?

<p>Compounds are classified into elements and mixtures.</p> Signup and view all the answers

What is the difference between elements and compounds?

<p>Elements are made up of only one type of atom, while compounds are made up of two or more different types of atoms.</p> Signup and view all the answers

What is the purpose of the periodic table?

<p>To classify elements based on their physical properties.</p> Signup and view all the answers

What is the correct format for element symbols?

<p>The first letter of the symbol is lowercase, and the second letter is capitalized.</p> Signup and view all the answers

What is the purpose of element symbols?

<p>To simplify the representation of elements in chemical formulas and equations.</p> Signup and view all the answers

What is a substance that has uniform properties and can be classified into elements and compounds?

<p>Elements</p> Signup and view all the answers

What are pure substances made up of only one type of?

<p>Element</p> Signup and view all the answers

What is the arrangement of elements with similar properties called?

<p>Groups</p> Signup and view all the answers

What are the abbreviations of elements called?

<p>Symbols</p> Signup and view all the answers

Which element is a vital substance that supports plant and animal life?

<p>Oxygen</p> Signup and view all the answers

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