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Worksheets1st NWA Review
Total questions: 100
Worksheet time: 3hrs 24mins
The vertical (up and down) columns in the Periodic Table are called
groups
towers
periods
atomic numbers
What does the mass number tell you?
The number of electrons and protons
The number of neutrons
The number of protons and neutrons
The number of protons.
The horizontal (side to side) rows in the Periodic Table are called
groups
families
periods
atomic numbers
USE THE PERIODIC TABLE
How many valence electrons does carbon have?
4
12
6
14
USE THE PERIODIC TABLE
How many valence electrons does sodium have?
1
2
3
4
USE THE PERIODIC TABLE
How many valence electrons does Phosphorus have?
31
5
15
4
Elements in the same group have the same
Properties
Number of electrons
Number of protons
Nucleus
Subatomic particles with a negative charge
Electrons
Neutrons
Protons
Quarks
Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?
J.J. Thomson
Ernest Rutherford
Niels Bohr
Albert Einstein
Who discovered that the atom had an small, dense, positively charged center?
Ernest Rutherford
J.J Thomson
Robert Millikan
John Dalton
Which scientists believed an atom was indivisible? (Choose all correct responses.)
Democritus
Dalton
Thomson
Rutherford
Who proposed that electrons move around the nucleus in circular orbits?
Dalton
Thomson
Rutherford
Bohr
What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?
Neils Bohr, Ernest Rutherford, JJ Thomson, John Dalton, & Democritus
JJ Thomson, John Dalton, Neils Bohr, Ernest Rutherford, & Democritus
Democritus, John Dalton, JJ Thomson, Ernest Rutherford, and Neils Bohr
John Dalton, Neils Bohr, JJ Thomson, Democritus, & Ernest Rutherford
What were John Dalton three contributions to atomic history?
Created the atomic theory
Discovered that the atom is mostly empty space
Believed that atoms of a given element are identical
Hypothesized that the atom is a tiny, hard sphere
Believed that the universe was made of tiny "uncuttable" particles
What were J. J. Thomson's three contributions to the atomic theory?
Discovered the electron
Discovered the nucleus -did the gold foil experiment
Used the cathode ray tube in his discovery
Created a model of the atom with electrons moving around the nucleus in fixed orbits
Created the "plum pudding" model of the atom
What are two facts about Democritus's?
Greek philosopher
Created the atomic theory
Used the cathode ray tube in his discovery
Believed that the universe was made of tiny "uncuttable" particles
Discovered that the atom is mostly empty space
What is Neils Bohr's contribution to the atomic theory?
Created the atomic theory
Created a model of the atom with electrons moving around the nucleus in a fixed orbits
Discovered that the proton had a positive charge
Believed that atoms of a given element are identical
Discovered the electron
What were Ernest Rutherford's three contributions to atomic theory?
Discovered that the atom is mostly empty space
Discovered the nucleus- did the gold foil experiment
Used the cathode ray tube in his discovery
Discovered the electron
Discovered that the proton had a positive charge
What model did Schrodinger create?
The Electron Cloud Model
The Billiard Ball Model
The Rift Model
The Gold Leaf Model
Who is this?
Neinsen
Schrodinger
Chadwick
JJ Thomson
The maximum number of electrons that saturates the principal energy level (n) is given from the rule
2n
n2
2n2
(2n)2
Dimitri Mendeleev’s periodic table organized the elements based on their ________.
Atomic Mass
Density
State of Matter
Quarks
The atomic mass of an element is the ___.
average of the mass number and the atomic number for the element
weighted average of the masses of the isotopes of the element
total mass of the isotopes of the element
total number of subatomic particles in the nucleus
What does the Bohr Model represent?
The structure of molecules
The structure of the Solar System
The structure of an atom
The structure of East Hills
Name this element.
Argon
Chlorine
Aluminum
Boron
How many electrons does the first shell hold?
1
2
4
8
How many electrons can be in the 2nd energy level hold?
1
2
4
8
What are the elements in group 1 (the far left) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in group 2 of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in group 18 (the far right) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in group 17 of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in groups 3-12 of the periodic table called?
Transition metals
Non-metals
Metalloids
Metals
What are the elements found along the "staircase" called? They have properties of both metals and non-metals.
Metalloids
Non-metals
Transition metals
Metals
Hydrogen is a:
Alkali metal
Metalloid
Non-metal
Noble gas
How many valence electrons does Helium have?
8
2
4
6
1s2 2s2 2p6 3s2
1s22s22p63s23p6
4s23d104p6
[Xe] 6s2 4f14 5d9
An atom that has gained energy beyond normal is said to be ...
excited
energized
naturalized
grounded
This could be the dot diagram of
Mg
Cl
C
O
This is a correct dot diagram for carbon (C)
true
false
Which of these is incorrect?
Which of the following shows a correct Lewis dot structure?
