Atoms
Elements & Compounds
States of Matter
Periodic Table
Metals & Nonmetals/ Scientists
100
The smallest unit of an element that still has the properties of the element.
What is an atom?
100
The difference between compounds and elements.
What is ..... Compounds are substances made up of atoms of two or more elements that are chemically combined.
100
This state of matter has a definite shape and a definite volume.
What is a solid?
100
Elements in the periodic table are arranged by ___________.
What is the atomic number?
100
A substance that is shiny, bendable and conducts electricity.
What is a metal?
200
A subatomic particle that orbits an atoms nucleus and has a negative electric charge.
What is an electron?
200
What elements share or transfer to form compounds.
What are electrons?
200
The temperature at which a solid changes from a solid to a liquid.
What is the melting point?
200
An arrangement of elements with similar properties into columns and rows.
What is the periodic table?
200
A substance that is not malleable.
What is a nonmetal?
300
An atom that has 20 protons, also has _________ electrons.
What is 20?
300
N2 is an example of a/an ____________.
What is an element?
300
The state of matter where molecules move very fast, and in all different directions.
What is gas?
300
Elements with _______ atomic numbers are most abundant in the universe.
What is low?
300
What Wilhelm Roentgen discovered by accident.
What is the X-ray?
400
Subatomic particles found in the nucleus.
What are protons and neutrons?
400
NaCl is an example of a/an ___________.
What is a compound?
400
The materials needed to observe water in all three of its states of matter, when given an ice cube.
What is heat and a container?
400
Challenge!!!
What is Atom 1 and 3?
400
What Lise Meitner is known for.
What is nuclear fission?
500
Atoms that have the same number of protons, but different numbers of neutrons, in their nuclei.
What is an isotope?
500
The name of the compound CO2.
What is Carbon Dioxide?
500
When a solid changes to a gas, without first becoming a liquid.
What is sublimation?
500
The atomic mass of the element Hafnium.
What is 178.49 AMU
500
Given a hammer, safety glasses, and 4 solid substances, how can a student determine which one is a metal.
What is .....? Metal is maleable, and will bend. The rest will shatter.
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