Chemistry 1
The number you use to find the number of protons in the nucleus.
What is the atomic number?
3 main states of matter
What are Solid, liquid, and Gas?
What is the element symbol for Calcium?
CA
What information does the atomic number of an atom give?
The number of Protons and Electrons
What causes static electricity?
The build-up of electrons on the surface of a material. Sometimes causing a shock.
Three main groups of elements are on the periodic table
What are metals, nonmetals, and metalloids?
How many electrons are in Iron?
26
What is the element symbol for Argon?
Ar
Elements that are the most abundant on the periodic table.
What is a Metal?
What is oxygen (O2) classified as?
Element
Compound
Mixture
Element
What is the atomic mass number?
The sum of protons and neutrons in the nucleus of an atom.
Sodium + Chlorine = Sodium Chloride
A. Compound
B. Element
C. Mixture
D.
Compound- Two elements chemically combined.
What subatomic particles are in the nucleus?
Protons and neutrons
Group 18 elements on the right hand side of the periodic table of elements.
What are the Noble Gases?
How many protons are in silicon?
14
Name all 3 subatomic particles.
What are Protons, Neutrons, and Electrons
What is the atomic number of Nitrogen?
Nitrogen
What subatomic particle is in the outside of the nucleus of an atom?
electron
The most reactive elements are on what side of the periodic table?
The left
List 4 properties of metals.
Shiny
Good Conductor of electricity and heat
Malleable
Ductile
What is the correct answer if a NEUTRAL atom has 6 protons then it would have...
A. 6 neutrons
B. 6 electrons
C. the atom has more protons than electrons
D. the atomic mass is 6
A: 6 electrons
A type of element with properties between metals and non-metals
What are metalloids?
What is NH3 classified as?
Element
Compound
Mixture
Compound
How many valence electrons does Selenium have?
6 (Group 16-drop the 1)
List 2 properties of Metalloids
Semi-Conductors
Luster
Brittle
4 (Group 14-drop the 1)
How many of each atom are there?
3C6H12O6
DAILY DOUBLE:
What is substance has this chemical formula?
c:18
H: 36
O : 18
Sugar/Glucose
What is water (H2O) not on the periodic table of elements?
It is a compound of two elements found on the periodic table.
What element is in group 13 period?
In -Indium
Lithium, sodium, potassium, rubidium, caesium and francium belong to the family of ______________
What is Alkali metal.
Why do protons and electrons stay near each other in an atom?
Positive and Negative charges attract.
How many of each atom are there?
3Fe2(SO4)^3
FE: 6
S:9
O:36
Find the amount of neutrons Tungsten has.
110
184-74=110
WHY are noble gases the least reactive? (Think Bohr models)
They have a full valence shell, they do not want to share, lose, or gain electrons.
Which element would have a bigger atomic radius,
K or He and WHY??
K because it would have 4 electron shells instead of 1- It also would have a higher atomic number meaning more protons which in turn means more electrons in the shells.
Atomic radius goes down as you more left to right and gets bigger as you go down the group.