Periodic Table Flashcards
The periodic table is for?
Arranging elements
How does the periodic table arrangement help chemists?
It helps predict what chemical reactions that are likely for an element
The periodic table has both metals and non metals. Label them on a periodic table now!
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Ask how an element can be determined to tell if it’s metal or non metal
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What is a vertical colum of elements called in the periodic table?
Groups
What is a horizontal row called in the periodic table?
A period
In what way are elements in the same group similar?
Similar chemical properties
This is because Atoms have the same number of electrons in the highest occupied energy level
What are the names of the following groups? Group 1 Group 2 Group 7 Group 8/0 Area between groups 2 + 3
Group 1 -alkali metals except hydrogen Group 3,4,5,6 - alkaline earth metals Group 7 halogens Group 8noble gases Between 2 and 3 transition metals
Name the group which contains-
Very reactive metals
Very reactive non metals
Very unreactive non metals
Reactive metals - group 1 alkali metals
Very reactive non metals - group 7
Very unreactive non - metals - group 0 (eg helium)
The transition metals are an important group of metals with a wide number of uses
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What type of particle is every element made of
Atoms
What are the three sub-atomic particles?
Electrons,neutrons,protons
What is at the centre of every atom?
Protons and neutrons
Where are the electrons located in an atom
Shells or orbitals that surround the nucleus of an atom
What are the charges in each of the sub-atomic particles?
Protons- positive
Neutrons -neutral/no charge
Electrons - negative
Why are atoms neutral?
Atoms have equal electrons and protons
What mass do each of the sub-atomic particles have
Proton 1
Neutron 1
Electron (very small) 1/1836
What is used to put the elements in order in the periodic table
Elements are arranged from left to right and top to bottom in order of increasing atomic number
Order generally is based with atomic mass
What is the atomic number ?
The atomic number or the proton number of a chemical element is the numbers of protons found in the nucleus of an atom
What is the mass number?
Total number of protons and neutrons
Practice writing Nuclide notation for any given atom
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How can neutrons in an atom be calculated?
Mass number takeaway atomic number
Where are electrons located and arranged with atoms?
Located in energy levels outside the nucleus and they have a 2,8,8,2 arrangement for the first 20 elements.
What is the maximum number of electrons that each of the first 3 electron shells hold?
18 electrons
What can be said about the number of electrons in the outer shell of the atoms of elements in the same group of the periodic table?
Has same number of electrons on outer shell
Know how to write the electron arrangement for any of the first 20 elements
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What are isotopes?
Same number of protons in the element but have different masses
Know that most elements have isotopes
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What is the relative atomic mass of an element?
This is found in the data booklet
Work out which isotope is more common
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What’s an ion
Ion an imbalance of electrons and protons
Atom which loses or gains an electron
This creates an imbalance in charge
