Atomic Mass
The definition of atomic mass.
Protons + neutrons.
The definition of atomic number.
The number of protons in the nucleus of an atom.
The arrangement of the elements in the Periodic Table.
Increasing atomic number.
The most abundant element on Earth.
Oxygen.
The location of the transition metals on the periodic table
Center (Column 3 to 12)
The atomic mass of oxygen atom.
16
The Atomic number of carbon
6
The trend of the valence electrons
(Period and Group)
Increase from left to right
Constant in groups
An element that can form up to 10 million compounds.
Carbon.
Something that sets transition metals apart from other elements on the periodic table
Variable oxidation states
The element that has the atomic mass of 35.
Chlorine.
The element with the atomic number 36
(Hint: Noble Gas)
Krypton
The definition atomic radius and its trend in the periodic table.
The distance from the center of the nucleus to the surrounding electrons.
Increases down a group.
Decreases from left to right.
An element named after countries.
Francium, Germanium, etc.
At least 3 characteristics of transition metals
- Heat & Thermal Conductivity
- Ductile
- Malleable
- Form colored compounds
- Variable Oxidation States
- High melting & boiling points
The element with the atomic mass of 39.
Potassium.
Name and Arrange these Alkali Metals according to their atomic number:
K, Li, Fr, Cs, Na, Rb
Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
The role of electron shielding in ionization energy trends.
The higher the shielding effect, the lower the ionization energy.
The reason why Mendeleev's periodic table is useful for scientists.
It was used to predict the properties of unknown elements.
The number of transition metals in the periodic table
38
The atomic mass of xenon.
(Hint: Al H)
131.
The first 10 elements in the order of their atomic number
Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon.
Trends in the following:
a) atomic radius
b) ionization energy
c) electronegativity
d) electron affinity
a) Increases down a group. Decreases from left to right.
b) Increases from left to right. Decreases down a group.
c) Increases from left to right. Decreases down a group.
d) Increases from left to right. Decreases down a group.
A country that is named after an element.
(Hint: Country of Silver)
Argentina.
(Latin name Argentum: silver)
First person to use the term "transition metals".
Charles Bury.