silicon

Chemistry Science 18 of 18 appearances

Practice Chemistry

"silicon" appearances by year

All Chemistry clues by year

Clue	Answer As Given	Value	Round	Category	Air Date	Show
27.7% of the Earth's crust is made up of this element that's used in computer chips	silicon	$800	DJ	THE ELEMENTS	2025-02-19	#9273
Predynastic Egypt used this element in glassmaking; today, we'd be pretty lost without it as a semiconductor in computers	silicon DD	$7,000	DJ	ELEMENTS & THEIR USES	2022-06-08	#8658
Known for its "Valley", this can be used as a semiconductor & as an alloying element in steel	silicon	$400	DJ	SOME RANDOM ELEMENTS	2022-01-21	#8560
The 2 most abundant elements in Earth's crust are oxygen & this one used in making electronic circuits	silicon DD	$1,000	J	ELEMENTARY SCHOOL	2015-12-22	#7197
More than 1/4 of the Earth's crust is this element, symbol Si	silicon	$1,200	DJ	THE ELEMENTS	2011-03-01	#6097
In 1824 Jons Jakob Berzelius found this nonmetallic element that later lent its name to a California valley	silicon	$400	J	SUCH GOOD CHEMISTRY	2009-12-07	#5806
Quartz:____O2	silicon	$1,600	DJ	MISSING ELEMENTS	2009-01-15	#5609
The most abundant compound in the earth's crust is SiO2, the Si standing for this element	silicon	$800	DJ	IT'S ELEMENTAL	2007-02-12	#5166
Sand is composed largely of oxygen & this element, atomic number 14	silicon	$400	DJ	THE ELEMENTS	2005-05-09	#4771
The industrious Berzelius ferreted out thorium & selenium & was the first to see Si, this	Silicon	$1,200	DJ	THEY FOUND MORE THAN ONE ELEMENT	2005-01-05	#4683
In the electronics industry, this element symbolized Si, is made into N- & P-types of semiconductors	silicon	$600	J	IT'S ELEMENTAL	2004-11-03	#4637
This second-most abundant element in the earth's crust wasn't discovered until 1824	Silicon	$500	J	THE ELEMENTS	1996-11-29	#2820
Used to make transistors & semiconductors, it's the most abundant element on Earth after oxygen	Silicon	$1,000	DJ	THE ELEMENTS	1996-01-17	#2623
The "Valley" in California between Palo Alto & San Jose is nicknamed after this element	silicon	$600	DJ	THE ELEMENTS	1994-05-10	#2242
This semiconducting element makes up 27.7% of the mass of the earth's crust	silicon DD	$4,000	DJ	CHEMISTRY	1993-02-05	#1945
Germanium used to be used in semiconductors until this more common element superseded it	silicon	$100	J	CHEMISTRY	1991-05-16	#1559
Member of carbon family so vital to electronics a high-tech "valley" bears its name	silicon	$200	J	CHEMISTRY	1986-05-01	#429
After oxygen, this element associated with computer chips is the most common in the earth's crust	silicon	$1,000	DJ	CHEMISTRY	1984-09-28	#15

Clue

Answer As Given

Value

Round

Category

Air Date

Show

27.7% of the Earth's crust is made up of this element that's used in computer chips

silicon

$800

THE ELEMENTS

2025-02-19

#9273

Predynastic Egypt used this element in glassmaking; today, we'd be pretty lost without it as a semiconductor in computers

silicon DD

$7,000

ELEMENTS & THEIR USES

2022-06-08

#8658

Known for its "Valley", this can be used as a semiconductor & as an alloying element in steel

silicon

$400

SOME RANDOM ELEMENTS

2022-01-21

#8560

The 2 most abundant elements in Earth's crust are oxygen & this one used in making electronic circuits

silicon DD

$1,000

ELEMENTARY SCHOOL

2015-12-22

#7197

More than 1/4 of the Earth's crust is this element, symbol Si

silicon

$1,200

THE ELEMENTS

2011-03-01

#6097

In 1824 Jons Jakob Berzelius found this nonmetallic element that later lent its name to a California valley

silicon

$400

SUCH GOOD CHEMISTRY

2009-12-07

#5806

Quartz:____O2

silicon

$1,600

MISSING ELEMENTS

2009-01-15

#5609

The most abundant compound in the earth's crust is SiO2, the Si standing for this element

silicon

$800

IT'S ELEMENTAL

2007-02-12

#5166

Sand is composed largely of oxygen & this element, atomic number 14

silicon

$400

THE ELEMENTS

2005-05-09

#4771

The industrious Berzelius ferreted out thorium & selenium & was the first to see Si, this

Silicon

$1,200

THEY FOUND MORE THAN ONE ELEMENT

2005-01-05

#4683

In the electronics industry, this element symbolized Si, is made into N- & P-types of semiconductors

silicon

$600

IT'S ELEMENTAL

2004-11-03

#4637

This second-most abundant element in the earth's crust wasn't discovered until 1824

Silicon

$500

THE ELEMENTS

1996-11-29

#2820

Used to make transistors & semiconductors, it's the most abundant element on Earth after oxygen

Silicon

$1,000

THE ELEMENTS

1996-01-17

#2623

The "Valley" in California between Palo Alto & San Jose is nicknamed after this element

silicon

$600

THE ELEMENTS

1994-05-10

#2242

This semiconducting element makes up 27.7% of the mass of the earth's crust

silicon DD

$4,000

CHEMISTRY

1993-02-05

#1945

Germanium used to be used in semiconductors until this more common element superseded it

silicon

$100

CHEMISTRY

1991-05-16

#1559

Member of carbon family so vital to electronics a high-tech "valley" bears its name

silicon

$200

CHEMISTRY

1986-05-01

#429

After oxygen, this element associated with computer chips is the most common in the earth's crust

silicon

$1,000

CHEMISTRY

1984-09-28

#15