elements and compunds
what sign are protons?
positive
what does periodic mean?
it means patterns or designs
what can the florene group also be called in row 17 of the periodic table?
they can also be called hallogens
what is energy?
its the ability to do work
what does hepta mean?
it means the number 7
what sign are nutrons?
mutual
what does malleable mean?
it means to be able to be molded or to reshape something
name some characteristics of row 18 on the periodic table.
*noble gases
*completley stable
describe thermal energy.
it heat of all the energy of matter
what does superscript mean?
its the total number of electrons in the sublevel
what sign are electrons?
negative
where are the protons and neutrons located?
they are located in the nucleus of the atom
which element has the largest raidus size?
francium
what percent is x to the 10th power?
20%
what does As stand for?
arsenic
how do you find the atomic number?
its the same as the amount of protons
describe isotopes.
its an atom with more neutrons than protons.
which element has the strongest electron negitivity force?
florine
what is the precent of x to the 26th power?
11%
what element has the lowest ieonzation energy?
francium
what is an element?
its a pure substance
what do some isotopes emit?
what group is row 16 of the periodic table called?
the oxygen group
what does groundscape mean?
electrons at the lowest possible level
who is the father of the periodic table?
dimitri medeleev