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Atomic
Test Description: Atomic Structure and periodic table
Instructions: Answer all questions to get your test result.
1) The total number of electrons in carbon
A
B. 4
B
D. 9
C
A. 3
D
C.6
2) This model for a sodium atom (Na) indicates that sodium contains –
A
D. 8
B
A. 23
C
B. 12
D
C. 11
3) On the periodic table, the elements in each column, or group, have -
A
C a solid structure at room temperature
B
D the same atomic number, but different atomic mass.
C
B. similar chemical and physical properties
D
A. been divided into representative elements and transition elements.
4) Which atomic model did we use in class?
A
B Bohr Model
B
D Bohr Cloud
C
C Rutherford’s Model
D
A Electron Cloud
5) Oxygen, chlorine, and sulfur are all located on the same side of the Periodic Table of Elements because they are all
A
D solids.
B
B metals.
C
C metalloids.
D
A nonmetals
6) Which elements are categorized as metals on the Periodic Table of Elements?
A
C sodium, potassium and calcium
B
A hydrogen, helium, and carbon
C
B iodine, boron, and iron
D
D tin, silver and neon
7) . An element that is described as not shiny and a poor conductor of thermal energy is classified on the Periodic Table of Elements as a –
A
A metal
B
D synthetic
C
B metalloid
D
C nonmetal
8) If an atom has 18 protons, 18 electrons, and an atomic mass of 39.9, what is the number of neutrons?
A
D 39.9 neutrons
B
C 22 neutrons
C
B 36 neutrons
D
A 18 neutrons
9) The reactivity of an element is determined by the –
A
A mass of the atom
B
C number of neutrons.
C
D number of valence electrons.
D
B number of protons.
10) Which of the following atoms is the most reactive metal?
A
C sodium
B
D xenon
C
A hydrogen
D
B lithium
*select an answer for all questions
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