Chemistry
a neutral atom of silicon has
14 electrons.
what is the atomic mass for silicon
28.1
According to the period table, how many neutrons are in a potassium atom that has atomic mass of 41?
41-19=22
According to the periodic table, the neutral atom of what element has 4 protons, 5 neutrons, and 4 electrons.
beryllium
which two substances are elements
iron and helium
what is the most important factor in determining an element's place in the periodic table
number of protons
families
or groups Vertical columns on the periodic table
periods
Horizontal rows on the periodic table
which sentence is true about the periodic table of elements is true.
Metals are found on the left side of the periodic table.
iodine would have a chemical properties most like
chlorine because they are in the same group
water(h2o) is best classified as an
compound
based on the location of nickel which of these is a property of nickel?
good conductor of heat and electricity
in which region of the table would nonmetals be found
region 3
how do atomic masses vary throughout the periodic table of the elements
they increase from left to right and top to bottom