Symbols
N
What is Nitrogen?
Chlorine
What is Cl
Which two elements makes up CO2
Carbon and Oxygen
how many elements are on the periodic table
What is 118
What's the charge of a neutron
Neutral
Na
What is sodium.
Magnesium
What is Mg
How many neutrons does Beryllium have?
5 neutrons
(atomic mass) 9 - (atomic number) 4 = 5
We can find the number of protons by looking at the atomic _____?
what is atomic number
What's the charge of an electron
Negative
Si
What is silicon
Iron
What is Fe
What are the electrons on the last shell called
Valence electrons
what is the lightest element in the periodic table
what is hydrogen
What's the charge of a proton
Positive
Li
What is lithium
Gold
What is Au
What state of matter are most elements?
Solids
Which element has an atomic mass of 118.71
Tin
Which subatomic particle has no mass
Electrons
Ce
What is Cerium
Silver
What is Ag
How many atoms does NaCl have?
2 atoms - Sodium and Chlorine
Name one element in family 18
Which subatomic particle is located in the nucleus?
Protons and Neutrons