The fixture of the neon lights is made out of?
Glass.
What's the equation of Density?
How any elements are in the Periodic Table?
What did James Chadwick discover?
The existence of Neutrons
What is Ionization?
a process by which ions are formed by gain or loss of an electronfrom another atom/molecule
What is at the end of the light fixtures?
Electorodes
Density has the units of...
grams per cubic centimeter
If an atom goes from left to right on the periodic table does it increase or decrease?
Decrease
How many Atomic theories are there?
5 Atomic theories
On the Periodic Table the nuclear charge increases
Down periods
or
Across Periods
Across periods
Why are neon lights different than normal lights?
Neon lights use chemicals, to create the color and make the light, light up. Doesn't use Copper Wires.
What's the density of water?
997 kg/m3
Group 1 of the elements is called...
Noble gases
Halogens
Alkali metals
Alkali Metals
What was JJ Thomson's theory?
Negative and Positive charge in a model of and atom
There is more nitrogen than oxygen for ionization energy because?
Nitrogen has half-filled p-orbitals
What chemicals are used to make neon lights?
Mercury, Argon, Helium, and Krypton
the principle of density was discovered by?
Archimedes
All elements in the Periodic table have the same
same number of valence electrons
What are the 4 principles of Atomic Theory?
1) all matter is made of atoms
2) A chemical reaction is a rearrangement of atoms
3) Compounds are formed by 2 or more different kinds of atoms
4)Atoms are invisible and indestructible
Which of these elements has the highest ionization energy?
Sc
Cl
Nb
Sn
Sc
Does Neon lights get hot like normal lights if you leave them on for a long time?
HAHA no, they don't, since real neon lights are gas discharged lamps they produce little to no heat
Density and Volume is
Directly Proportional
Which element, named after a famous physicist, has been one of the most difficult elements to study since 1952?
Element 99 Einsteinium
Who are the five scientists who discovered atoms?
J.J Thomson
Max Planck
John Dalton
Albert Einstein
Neil Bohr
The hardest element to inonize is Germanium.
T or F?
False. Its actually helium