What is the smallest part of an element that can exist?

AQA C1 Chemistry Quiz

Passage
•
Science
•
10th Grade
•
Hard
Emily Burke
Used 2+ times
FREE Resource
99 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molecule
Atom
Compound
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are atoms of each element represented?
By their atomic number
By their mass number
By a chemical symbol
By their color
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Approximately how many different elements are there?
50
100
150
200
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are compounds formed?
By mixing elements physically
By chemical reactions
By heating elements
By dissolving elements in water
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do chemical reactions always involve?
The formation of one or more new substances
The destruction of atoms
The creation of energy
The change of color
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can chemical reactions be represented?
By pictures
By word equations or equations using symbols and formulae
By physical models
By color changes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should students be able to do with the periodic table for the exam?
Memorize the entire table
Use the names and symbols of the first 20 elements
Draw the periodic table
Identify the colors of elements
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