How many periods are on the periodic table?
7
Using the model Shared here, which element does the diagram depict?
Nitrogen
Elements 89-102 are called the _____ series
Actinides
Which element is the most abundant metal in the earth's crust?
Aluminum
____ is the ability to be hammered without shattering
Malleability
Groups 3-12 (the B groups) are called the ______.
Transition metals
How many valence electrons does carbon have?
4
How many gases are on the periodic table?
11
Which element is the most abundant element in earth's crust?
Oxygen
____ means able to be drawn into wires
Ductile
Group 8A is known as the ____
Noble Gases
How many valence electrons are in helium?
2
Most of the elements on the periodic table are ____
A. metals C. Metalloids
B. Nonmetals D. Liquids
A. Metals
What are the characteristics of metals? (at least 3)
Good conductors of heat/electricity
Shiny
Malleable
Ductile
The scientist that was the first to prove the existence of sub-atomic particles that were negative in his plum pudding model was ____
Options: Dalton, Thompson, Rutherford, or Bohr
Thompson
The Halogens are found in which group?
Compare/contrast the ground state vs. the excited state.
Ground state is when all electrons are in the lowest energy level they can occupy.
Excited state is when an electron has moved from an inner energy level to an outer energy level.
How many metalloids are there?
7
What is the most reactive non-metal?
Fluorine
Which scientist was the first to prove the existence of a dense center of an atom that was positive with his gold foil experiment?
Options: Dalton, Thompson, Rutherford, Bohr
Rutherford
The elements in group 1A are called the _____
Alkali Metals
Based on the given isotope notation, tell me the PNE, mass, and atomic number of this element.
126C
Mass is 12
Atomic number is 6
P = 6
E = 6
N = 6
Demetri Mendeleev arranged the elements of his periodic table in order of ___.
their mass
What are the characteristics of non-metals (at least 3)
Poor conductors of heat/electricity
Low boiling point
Brittle when solid
Which scientist was the first to use a planetary model that showed where the electrons move around the nucleus of an atom?
Options: Dalton, Thompson, Rutherford, Bohr
Bohr