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Elements and the Periodic Table 24-25 Flashcards | StudBud
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Elements and the Periodic Table 24-25
Elements and the Periodic Table 24-25
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1
Which of these is an alkaline earth metal?
Magnesium
Calcium
Lithium
Copper
2
Which property of metals allows them to be pulled or drawn out into long wires?
Luster
Ductility
Electrical Conductivity
Malleability
3
This element is in the oxygen family and is a nonmetal used in rubber manufacturing.
Lithium
Gold
Silicon
Sulfur
4
Which alkali metal would produce the strongest reaction when placed in water?
Rubidium
Sodium
Potassium
Lithium
5
Which of the particles makes up the least mass of an atom?
Proton
Electron
Neutron
Nucleus
6
An element is hard, shiny, malleable, and reacts slowly with water and oxygen to form rust. What group is it in?
Transition Metals
Lanthanides
Alkaline Earth Metals
Alkali Metals
7
How did Mendeleev originally order the elements in his periodic table?
By their properties
By decreasing atomic mass
By atomic number
By increasing atomic mass
8
Which element would have properties most similar to calcium?
Magnesium
Platinum
Potassium
Sodium
9
Which group on the periodic table is generally very reactive, toxic, and dangerous?
Halogen Family
Noble Gases
Transition Metals
Oxygen Family
10
Which particle and its description is correct?
Proton - Positive charge
Electron - No charge
Neutron - No charge
Neutron - Negative charge
11
What word means "in a regular, repeated pattern?"
Properties
Periodic
Elements
Table
12
Which is true of the noble gases?
Non reactive
All of the above
In Group 18
Include xenon and krypton
13
Which is not true of groups on the periodic table?
Elements in them share properties
They're also called families
They're arranged metal-metalloid-nonmetal
They're vertical columns
14
Which of these is not a transition metal?
Silver
Potassium
Nickel
Mercury
15
Why is silicon a useful element for equipment like computer chips?
It's brittle
It's relatively reactive
It's hard
It's a semiconductor
16
Which group number do chlorine and bromine belong to?
18
16
17
15
17
Which is not true of metalloids?
All very reactive
Located between metals and nonmetals
Have some metal and nonmetal properties
Mostly gases at room temperature
18
Which is a physical property of metals?
Dull and brittle
Good conductors of heat
Poor conductors of electricity
Reactivity
19
An element has an atomic mass of 65.38 and an atomic number of 30. How many neutrons does it have?
30
65.38
65
35
20
How many elements are on the modern periodic table?
122
112
118
108
21
Which element is more reactive?
Phosphorus
Nitrogen
22
Which group number contains the nitrogen family?
16
2
1
15
23
How many groups on the periodic table contain nonmetals?
5
8
6
7
24
What information is usually included on a periodic table entry?
Atomic number, number of neutrons, chemical symbol, name
Atomic number, atomic mass, name
Atomic number, chemical symbol, name
Atomic number, name, chemical symbol, atomic mass
25
Which is the most reactive of all the elements?
Iodine
Nitrogen
Fluorine
Potassium
26
The carbon family contains only one nonmetal.
False
True
27
Which is not true of the nucleus of an atom?
Made of electrons
Made of protons
Located at center of atom
Made of neutrons
28
Which of these elements would be the least reactive?
Halogen
Mixed Group Metal
Noble Gas
Alkaline Earth Metal
29
Which of these groups are considered to be the most reactive?
Alkali Metals
Transition Metals
Alkaline Earth Metals
Actinides
30
Which is true of protons?
Located outside of nucleus
Negatively charged
Located in nucleus
Positively charged
31
Mendeleev was able to predict the existence of elements that hadn't been discovered yet.
False
True
32
Which halogen is liquid at room temperature?
Iodine
Chlorine
Fluorine
Bromine
33
Which of these is true of metals?
They're ductile
All of the above
They have luster
They're malleable
34
Which groups are arranged underneath the periodic table?
Halogens, actinides
Alkaline earth metals, lanthanides
Lanthanides, transuranium metals
Actinides, lanthanides
35
Who created the first version of the periodic table?
Antoine Lavoisier
John Newlands
Gregor Mendel
Dmitri Mendeleev
36
Which element has the simplest atoms?
Helium
Beryllium
Hydrogen
Lithium
37
What is the atomic number of an element?
Number of electrons outside nucleus
Mass of one atom
Number of protons in nucleus
Average weight of element and isotopes
38
Which element name and chemical symbol pairing is incorrect?
Iron - Fe
Silver - Ag
Gold - Au
Helium - H
39
The transition metals are located in which group or groups?
4-15
2
1
3-12
