chem. words

3. one of two stable isotopes of hydrogen.
5. a positively charged ion.
7. symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.
8. substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds.
9. two or more types of atoms that have the same atomic number and position in the periodic table, and that differ in nucleon numbers due to different numbers of neutrons in their nuclei.
10. a negatively charged ion.
12. (in the periodic table)- a column of elements in the periodic table of the chemical elements.
13. subatomic particle which has a neutral charge, and a mass slightly greater than that of a proton.
14. radius- a chemical element is a measure of the size of its atoms.

1. subatomic particle with a positive electric charge and a mass slightly less than that of a neutron.
2. something that is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.
4. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
5. in the periodic table is a row of chemical elements.
6. energy- the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.
11. spectroscopy- an analytical technique that is used to measure the mass-to-charge ratio of ions.
12. table- a table of elements holding 118 elements.