Periodic Table 1
Periodic Table 2
Periodic Table 3
Periodic Table 4
Periodic Table 5
Periodic Table 6
10
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
10
How does the radii move on the Periodic Table - left to right?
largest to smallest
10
On a periodic table, what do rows represent
Each row indicates how many rings/shells an atom has.
10
An atom’s mass number is 210 and its atomic number is 85. How many neutrons does the atom have?
125
10
An element that has gained or lost an electron is referred to as
ion
10
What is the number of Neutrons located in this element? Round if necessary.
12 neutrons.
20
What particles surround the nucleus
Electrons
20
What is mass number
Number of protons and neutrons
20
How is the table organized?
In ascending order based on the atomic number.
20
What are 3 physical properties of metals?
luster, malleable, ductile, good conductors, donate electrons, high density, high melting point
20
The first person to call atoms "atomos" was
Democritus
20
Draw the Bohr model of magnesium
check on board
30
What is the name of the 4 main classifications on the periodic table?
metals, non-metals, metalloids and synthetics
30
What two elements are liquids at room temperature?
Mercury and Bromine
30
Why is the atomic mass not a whole number?
it is an average of all known isotopes
30
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
30
What category does the image represent?
An Element and a Compound
30
Draw the Lewis dot structure for silicon
on board
40
What is smallest sub-atomic particle?
Electrons
40
What are the 3 parts of an atom
Protons, electrons, and neutrons
40
What has the symbol Ne, Na, K?
Neon
Sodium
Potassium
40
What is a Mixture?
Two or more substances that are mixed together but are not chemically bonded.
40
An element that has differing numbers of neutrons is known as
isotope
40
What is the name of the group 7A, 17 family?
halogens
50
How many elements have been named?
118
50
Which subatomic particle never changes?
protons
50
Which family (name not number) is the most reactive metals family?
Alkali Metals
50
What is the least reactive family on the Periodic Table? Also, name what column number.
Noble Gases, Col. 18
50
Based on the placement on the Periodic Table, what element has two valence electrons and two energy levels?
beryllium
50
What is the charge of the nucleus? Why... how do you know?
Positive