BOHR MODEL
ELEMENTS
Atoms
definition
physical or chemical
100
What particle lives on the energy levels?
what are electrons
100
what is the atomic number of hydrogen
what is 1
100
what particle has a no charge
what is a neutron
100
Definition of density
what is the measurement of how tightly a material is packed together
100
Is cooking an egg Physical or chemical change
what is chemical change
200
What electron are on the outermost shell?
What are Valence electrons
200
what elements make up water
what is hydrogen and oxygen
200
what particle has a negative charge
what is a electron
200
definition of a compound
what is a material formed by chemically bonding 2 or more chemical elements
200
Is rusting chemical of physical change
what is chemical change
300
Between a period and a group which indicates how many energy levels there are?
what is a group
300
what is the atomic number of hydrogen
what is 15
300
what particle has a positive charge
what is a proton
300
definition of a mixture
what is a combination of 2 or more substances not chemically combined
300
Is Ripping paper physical or chemical change
what is physical change
400
How do you know how many electrons are supposed to be on the bohr model?
What is the atomic number
400
what is the atomic number of lithium
what is 3
400
what particles live in the nucleus
what is protons and neutrons
400
definition of a physical change
what is when it changes shape,texture or shape
400
Is Melting a candle physical or chemical change
what is physical change
500
Who created the bohr model?
who is Niels Bohr
500
what is the symbol of this element, sodium
what is Na
500
is the atom visible to the naked eye
what is no
500
Definition of element
what is A substance that cannot be broken down into simpler substances
500
Is baking a cake Physical or chemical change
What is a chemical change