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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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Grade 9 intro to the basics of the periodic table.
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Which of the following halogens is the least reactive?
Bromine (Br)
Iodine (I)
Chlorine (Cl)
Fluorine (F)
2
Moving from left to right across a period, atomic numbers will:
Increase
Stay the same
Decrease
3
Oxygen (atomic number 8) has this many valence electrons:
4
5
3
6
4
Which of the following has the largest atomic radius in group 1?
Rubidium (Rb)
Lithium (Li)
Sodium (Na)
Potassium (K)
5
The two most reactive groups on the periodic table are the:
Alkali Metals and Alkaline Earth Metals
Lanthanides and Actanides
Halogens and Noble Gasses
Alkali Metals and Halogens
6
Which of the following has the smallest radius in period 3?
Aluminum (Al)
Sodium (Na)
Chlorine (Cl)
Magnesium (Mg)
7
Which of the following elements in period 2 has the highest electronegativity?
Beryllium (Be)
Boron (B)
Oxygen (O)
Lithium (Li)
8
Dimitri Mendeleev originally organized the periodic table based on an element's:
Atomic Mass
Atomic number
Valence Electrons
Number of energy levels
9
Which of the following elements in group 17 has the lowest ionization energy?
Bromine (Br)
Fluorine (F)
Chlorine (Cl)
Iodine (I)
10
Which of the following groups contain ALL Noble Gasses:
F, Cl, Br, I
N, O, H, He
He, Ne, Ar, Kr
He, Ne, Ar, O
11
Which one of the following alkali metals is the MOST reactive?
Potassium
Lithium
Cesium
Rubidium
12
Which of the following groups of elements have physical properties of being brittle and poor conductors of electricity.
Alkaline Earth Metals
Metalloids
Nonmetals
Transition Metals
13
Sodium (Na; atomic #11) has this many energy levels:
1
3
2
4
14
Which of the following elements in period 2 has the lowest ionization energy?
Fluorine (F)
Lithium (Li)
Beryllium (Be)
Boron (B)
15
Which of the following elements in group 17 has the highest electronegativity?
Iodine (I)
Fluorine (F)
Chlorine (Cl)
Bromine (Br)
16
The periodic table group that has a full amount of electrons in its outermost energy level:
Noble Gasses
Alkaline Earth Metals
Alkali Metals
Halogens
17
The group of the periodic table with 2 valence electrons is known as the:
Transition Metals
Alkaline Earth Metals
Halogens
Alkali Metals
18
This periodic group needs one more valence electron to fill its outer energy level.
Alakli Metals
Noble Gasses
Halogens
Alkaline Earth Metals
19
Which element that is in "s" block that has 2 valence electrons in its 3rd energy level?
Hydrogen (H)
Magnesium (Mg)
Sodium (Na)
Helium (He)
20
The valence electrons of the element Xenon (Xe) Atomic #54 are in this energy level:
4th
3rd
5th
6th
