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