Periodic Table

Question 1

what is the element name

Answer 1

usually from a greek or latin word for the element or a substance containing the element

Question 2

what is the atomic number

Answer 2

the number of protons in the nucleus of an atom

Question 3

what is the atomic mass

Answer 3

the average mass of the atoms in an element

Question 4

how are the elements arranged

Answer 4

according to the atomic number (number of protons)
metals, non-metals and semi-metals
groups
periods

Question 5

why is the periodic table arranged according to the atomic number of an element

Answer 5

because the protons never change. electrons can be moved from one atom to another and neutrons can sometimes be naturally different in the same element in different places, but the protons never change

Question 6

what is an ion

Answer 6

a charged atom (when an atom looses or gains and electron )

Question 7

what is an isotope

Answer 7

an element with the same atomic number but a different atomic mass

Question 8

atomic mass=

Answer 8

neutrons+ protons

Question 9

neutron=

Answer 9

atomic mass - atomic number

Question 10

what is an example of an isotope

Answer 10

carbon-12
carbon-13
carbon-14

Question 11

what is the chemical symbol

Answer 11

a short hand abbreviation for the element name