Protons
Neutrons
Element
Element Characteristics
Random
100
80
How many protons does Hg have?
100
They are both Present in the nucleus
What is one property both protons and neutrons have in common
100
Sodium.
If you have 11 protons and 12 neutrons this is an atom of what element.
100
Very reactive metal.
What are Alkali Metals?
100
Atom
The smallest indivisible part of an element.
200
The proton is a subatomic particle, symbol with a positive electric charge.
What is a proton?
200
Take the atomic mass minus the atomic number. (Remember round the atomic mass up)
How do you find the number of Nurtrons?
200
Atoms make up an element.
What's the difference between atoms and elements?
200
Not found freely in nature. Present in earths crust but not in their basic form. High boiling points.
Name two characteristics of alkaline earth metals.
200
Atomic Mass
The mass of the protons and neutrons in an atom.
300
False
True or false? Atoms are bigger than neutrons.
300
Isotopes
What are elements that have the same number of protons but different number of neutrons.
300
And element
What is a substance that cannot be broken down into simpler form called?
300
Oxides
What is it called when alkaline earth metals mix with oxygen
300
Excited electrons produce color when?
When they get heated and come back down to normal state
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