Element symbols
what is Al ?
Aluminum
What’s us the name of the element number one?
Hydrogen
How do you figure out the number of neutrons?
Subtract the atomic number from the atomic mass
The whole number of the chemical symbol is called what?
Mass
The way the periodic table is organized..
By the atomic number
What is Mg?
Magnesium
What element has an atomic mass of 238
Uranium
What number tells you the number of protons and electrons ?
Atomic number
The largest category (metals, non-metals) has the most elements?
Metals
These give off small particles
radioactive elements
What is Au?
Gold
What is the name of the element with the elemental symbol Zr?
Zirconium
How do you find an elements atomic mass?
Add the number of neutrons and the numbers of protons together.
There one of two letter symbol for each element is called what?
The chemical symbol
These elements are made in a lab..
synthetic elements
What is U?
Uranium
Which element has 42 as its atomic number?
Molybolenum
How many liquids are on the periodic table?
two
What is the atomic mass?
The sum of protons and nuetrons in the element atom
These scientist tried to turn lead into gold..
alchemists
What is Pb?
lead
What element has the elemental symbol yb?
Ytterbium
What does the term valence electrons mean? (2 things)
number of electrons on outermost shell tells how reactive an elements
hydrogen, helium, neon, and oxygen are all...
Non metals or gasses
Drew the first periodic table..
Dimitry Mendeleyev