Electrons
Periodic Table
Metals and Nonmetals
Isotopes, Noble Gases and Halogens
Terms
100
How many electrons can fit in the first energy level?
2
100
Which element is found in period 4 group 13
Gallium
100
The elements to the left of the zig-zag line are called ______.
Metals
100
True or False: The halogens are found in group 18
False, they are in group 17
100
Chemical Symbol
A shortened way of writing the names of elements.
200
How many electrons can fit in the 2nd energy level?
8
200
The elements in group 17 are called ______
Halogens
200
True or False: In lab, if the light bulb lit up, that indicated that the sample be tested was a nonmetal.
False
200
The number of _______ defines an atom as a certain element.
Protons
200
Electron Dot Diagram
A simple way to show how the electrons in the outermost energy level of an atom are arranged
300
Which energy level is located closest to the nucleus?
The first/lowest level
300
The elements to the right of the zig-zag line are called ______
Nonmetals
300
What are the properties of metals?
Luster, Malleability, Ductility, Good Conductors of Electricity and Heat
300
Different isotopes of an element have different number of ______.
Neutrons
300
Ductility
The ability to be made into a thin wire
400
An electron will jump to the next energy level with it _____ energy.
gains
400
The 6 noble gases are:
Helium, Neon, Argon, Krypton, Xenon and Radon
400
True or False: The element in Group 18 period 5 is a nonmetal.
True
400
All of the noble gases are found in small amounts in Earth’s atmosphere. The most plentiful is _____ which makes up about 1% of the atmosphere
Argon
400
Period
A horizontal row of elements on the periodic table
500
If an atom has its first 3 energy levels filled, how many electrons does it have?
2+8+16=26
500
Do the elements Calcium and Bromine have similar chemical and physical properties? How do you know?
No they do not. They are in the same period and the elements in a period do not have similar chemical and physical properties
500
All metals are solids at room temperature except _____
Mercury
500
Which isotope of Hydrogen has 1 Proton and 2 Neutrons?
Tritium
500
What are the names of the four newly named elements?
113 – Nihonium (Nh) 115 – Moscovium (Mc) 117 – Tennessine (Ts) 118 – Oganesson (Og)
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