Vocab
Vocab
Atoms
Atoms/Periodic Table
Misc
100
A substance that can make something happen faster.
What is a catalyst?
100
A positively charged particle present in the nucleus of all atoms.
What is a proton?
100
The three particles that make up an atom.
What are protons, neutrons, and electrons?
100
A reasonable value for the atomic mass of the missing element.
What is 108.5?
100
The number of protons in an atom.
What is the atomic number?
200
Columns of elements with similar physical or chemical properties.
What are groups?
200
Atoms of the same element with different numbers of neutrons.
What are isotopes?
200
Where protons and electrons are located in an atom.
What is the nucleus and traveling around the nucleus?
200
Elements are in the same group have these.
What are similar properties?
200
A negatively charged particle.
What is an electron?
300
A row of elements whose properties change gradually.
What is a period?
300
The time it takes for half of a sample of an element to decay.
What is half-life?
300
The 2 particles with the same mass.
What are protons and neutrons?
300
The left side of the periodic table has more of these than the right side.
What are reactive elements?
300
The release of nuclear particles and energy.
What is radioactive decay?
400
The number of protons and neutrons in the nucleus of an atom.
What is the mass number?
400
The group of elements rarely combine with anything else.
What are the noble gases?
400
This causes 2 atoms of the same element to have different masses.
What is having a different number of neutrons?
400
This man thought that atoms were tiny, indivisible, indestructible particles. He imagined them to be similar to a metallic sphere.
Who was Dalton?
400
This helps to tell the age of a dead plant or animal by measuring how much carbon has decayed,
What is carbon dating?
500
A nuclear particle with no charge.
What is a neutron?
500
A substance made up of one type of atom.
What is an element?
500
Oxygen's atomic mass of 8 means there are 8 of these.
What are the number of protons in an oxygen atom?
500
A tight knit cluster of protons and neutrons in the nucleus with a cloud of electrons spiraling around the nucleus.
What is today's model of the atom?
500
The worst band in the history of the world.
What is Nickelback?
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