Atoms
Atoms and Elements
Periodic Table
Matter/Electricity
Properties and Electricity
100
Atomic mass of an element is based on the
What are the number of protons and neutrons in the nucleus?
100
Stars are made of mostly
What is hydrogen?
100
The elements in a row of the periodic table are/have this.
What are properties that change in a pattern? (<-- best answer) (also accepted: increasing atomic #)
100
Electricity found in your household wall sockets is called
What is AC- Alternating Current?
100
Ductile means you can...
What is pull it into thin strands or wires?
200
An AMU is
What is an Atomic Mass Unit?
200
When an atom gains an electron it becomes
What is a negative ion?
200
The elements in a column of the periodic table have these.
What are similar properties and same Valence #.
200
the type of electricity supplied by a battery is called.
What is DC - Direct current?
200
Metals can be hammered into thin sheets.
What is malleable?
300
Electrons involved in bonding between atoms are which electrons?
What are valence electrons?
300
Ions are atoms with
What is an electrical charge?
300
Each family in the periodic table has its own characteristic properties based on these.
What are valence electrons?
300
The units used to measure electricy include:
What are: watts, volts, and amps?
300
The line on the periodic table that shares characteristics of both metals and nonmetals (name the group of matter AND the name of the line).
What are metalloids and "stairstep" or "zigzag" line?
400
Isotopes are atoms of elements with the same number of protons but an unusual amount of
What are neutrons?
400
Atomic symbols.
What are convenient, have only one capital letter, and are from Latin and Greek names?
400
Rows in the periodic table are called _____ while columns are called _____.
What are rows = periods and columns = families/groups?
400
Electrolyte solutions are and/or do this.
What is conduct electricity. Examples include salt water and gatorade.
400
Ionic compounds like MgCl2 are electrically ______.
What is neutral?
500
In an atom, the # of protons always = the # of _____
What are electrons?
500
Two or more atoms bonded together form a
What is a molecule?
500
The elements in family 18 (8A) don't ordinarily form compounds. What are they called, and why don't they form compounds?
What are Noble or Inert Gases? And...they have full valence shells of 8 electrons.
500
Electrical charges that remain stationary.
What is static electricity?
500
These hold together atoms in a molecule.
What are chemical bonds?
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