Elemants Flashcards
(15 cards)
How many elements are on the periodic table and what are they made of?
118
Atoms
What are compounds made of?
Different atoms
What to atoms make when they form strong bonds?
Molecules
What is an element?
A pure substance made of 1 type of atom
What is the difference between an atom and a molecule?
An atom is the smallest particle of an element.
And a molecule is made of two or more atoms chemically bonded together
What is used to represent chemical elements on the periodic table?
Letters of the alphabet
What are the little numbers in chemical formulas called?
Subscripts
How many elements occur naturally?
94
How many elements are mad with a nuclear reaction?
24
What 2 letters of the alphabet are not in the periodic table?
Q and J
How is a molecule made?
When two or more atoms are chemically bonded together
Carbon and sulphur at what at room temperature?
A solid state
What does the position of an element on the periodic table provide?
Information about its properties
What are the majority of elements on the table and where are they found?
Metal and on the left and in the middle
Name the properties of metals
Conduct electricity
Conduct heat
Malleable
Shiny
