Periodic table
shells
I know that
physical or chemical
periodic table too!
100
the number on the top of the box is equivalent to
What is the number of protons and electrons
100
the number of shells of a carbon atom
What is 2
100
matter cannot be created or destroyed, just rearranged is
What is the law of conservation of matter
100
burnt wood
What is chemical
100
elements in the first column are known as
What is earth metals
200
positively charged
What is protons
200
the name of the outer shell
What is valance
200
the 2 parts of a chemical bond formula
What is reactants and products
200
green quartz
What is physical
200
elements in the second row are known as
What is earth alkalis
300
negatively charged
What is an electron
300
the number of electrons in the outer shell of an oxygen atom
What is 6
300
the kind of reaction where the temperature goes down
What is endothermic
300
fruit ripening
What is chemical
300
elements in the nobel gas row are located where on the periodic table
What is the right row all the way over
400
to find this number subtract the atomic number from the atomic mass
What is the number of neutrons
400
the number of shells in a radon atom
What is 6
400
balanced or not AlBr + 3K --> 3(AlBr)K
What is Unbalanced
400
Baking soda and water
What is Chemical
400
why are the nobel gases said to be non reactant
What is their outer shell is full
500
elements in the last column are
What is Nobel gases
500
the goal of all atoms is to have ___ electrons in the outer shell
What is 8
500
ice melting is a _____________ reaction because heat is pulled from the area around it and the temp goes ________
What is endothermic ? down
500
a mixture
What is physical
500
why are elements with one or seven electrons said to be very reactant
What is they are looking to shed or gain electrons to have a complete shell
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