chem. words

2. in the periodic table is a row of chemical elements.
3. one of two stable isotopes of hydrogen.
4. a positively charged ion.
7. 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.
9. substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds.
11. a negatively charged ion.
12. symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.
13. something that is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.
14. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

1. subatomic particle with a positive electric charge and a mass slightly less than that of a neutron.
3. spectroscopy an analytical technique that is used to measure the mass-to-charge-ratio of ions.
5. energy the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.
6. a table of elements holding 118 elements.
8. subatomic particle which has a neutral charge, and a mass slightly greater than that of a proton.
10. radius a chemical element is a measure of the size of its atoms.
11. a column of elements in the periodic table of the chemical elements.