Periodic Table 1
Periodic Table 2
Periodic Table 3
Periodic Table 4
Periodic Table 5
100
How many ELECTRONS can the first ring/orbital shell hold?
How many ELECTRONS can the second ring/orbital shell hold?
The first ring/orbital shell can hold a maximum of 2 ELECTRONS
The second ring/orbital shell can hold a maximum of 8 ELECTRONS
100
How does the radii move on the Periodic Table - left to right?
largest to smallest
100
On a periodic table, what do rows represent
Each row indicates how many rings/shells an atom has.
100
An atom’s mass number is 210 and its atomic number is 85. How many neutrons does the atom have?
125
100
An element that has gained or lost an electron is referred to as
ion
200
What particles surround the nucleus
Electrons
200
What is mass number
Number of protons and neutrons
200
How is the table organized?
In ascending order based on the atomic number.
200
What are 3 physical properties of metals?
luster, malleable, ductile, good conductors
200
The first person to call atoms "atomos" was
Democritus
300
What is the name of the 3 main classifications on the periodic table?
metals, non-metals, metalloids
300
What two elements are liquids at room temperature?
Mercury and Bromine
300
Why is the atomic mass not a whole number?
it is an average of all known isotopes
300
What are three physical properties of non-metals?
not shiny, not malleable (brittle), not ductile, poor conductors (good insulators), gain electrons, low density, low melting point
300
What category does the image represent?
An Element and a Compound
400
What is smallest sub-atomic particle?
Electrons
400
What are the 3 parts of an atom
Protons, electrons, and neutrons
400
What has the symbol Ne, Na, K?
Neon
Sodium
Potassium
400
What is a Mixture?
Two or more substances that are mixed together but are not chemically bonded.
400
An element that has differing numbers of neutrons is known as
isotope
500
How many elements have been named?
118
500
Which subatomic particle never changes?
protons
500
Which family (name not number) is the most reactive metals family?
Alkali Metals
500
What is the least reactive family on the Periodic Table? Also, name what column number.
Noble Gases, Col. 18
500
Based on the placement on the Periodic Table, what element has two valence electrons and two energy levels?
beryllium