|
|
|
3
|
All atoms of this element contain 88 protons
|
|
5
|
All atoms of this element contain 26 protons
|
|
7
|
This element’s name comes from the Latin word for the earth
|
|
8
|
This element’s chemical symbol is Yb
|
|
10
|
It is believed that the Sudbury region of Canada is rich in this element because an ancient meteor impact
|
|
11
|
Concentration as low as 1,000 parts per million of this poisonous gas can kill you
|
|
13
|
Present in uranium ores in tiny amounts, this element is created when needed by bombarding radium with neutrons in a nuclear reactor
|
|
14
|
This element's chemical symbol is Ne
|
|
16
|
This elemental's chemical symbol is Dy
|
|
17
|
All atoms of this element contain 91 protons
|
|
18
|
This is the eight most abundant element in the earth’s crust
|
|
20
|
This element was named after a university in the United States
|
|
23
|
Cerussite, a poisonous, white compound of this element , was once used to color paint
|
|
27
|
Three atoms of this element were produced after bombarding a californium-249 target with 1.6 × 1019 calcium-48 ions over the course of 1080 hours
|
|
29
|
This element was named for a Russian Research Laboratory
|
|
32
|
This element has the highest melting point of all metallic elements
|
|
34
|
This element’s name comes from the Greek word meaning ‘inactive’
|
|
35
|
This elemental’s chemical symbol is Pm
|
|
37
|
Ions of this element were used as a propellant aboard the space probe Deep Space 1
|
|
38
|
This metal is often placed to other metals to form a shiny, protective coating
|
|
41
|
This element was named for the country Poland
|
|
42
|
The gray of this metal is nearly useless
|
|
43
|
This element’s name comes from the German words for “white mass”
|
|
45
|
This elemental’s chemical symbol is Au
|
|
|
