C2 Topic 1

Question	Answer
Why did Mendeleev leave gaps in his version of the periodic table?	He believed the element hadn't been discovered yet based on the properties of the elements in the same group
Which side of the periodic table are the metals on?	Left
How did Mendeleev decide on the order of the elements in the periodic table?	Based on their properties and atomic mass
Name three particles found in an atom and the charge of each	Proton - Positive Neutron - Neutral Electron - Negative
Complete the sentence ' All atoms of one type of element have the same number of...'	Protons
What can you say about the number of protons and electrons in an atom?	they are equal
What does the atomic number tell us about the particles in an atom?	The number of protons
What does the atomic mass tell us about the particles in an atom?	The number of protons and neutrons added together
How is an isotope different from an atom?	They have different numbers of neutrons
What name do we give to the rows and columns in a periodic table?	Rows - Periods Columns - Groups
How does the group number on the periodic table relate to the number of electrons in an atom?	The group number corresponds to the number of electrons in the outer shell

Resource summary

	Created by Princess Terin over 8 years ago