chem. words

3. in the periodic table is a row of chemical elements.
6. a chemical element is a measure of the size of its atoms.
7. a table of elements holding 118 elements.
10. a negatively charged ion.
11. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
12. an analytical technique that is used to measure the mass-to-charge ratio of ions.
15. one of two stable isotopes of hydrogen.
16. the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.

1. symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.
2. substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds.
4. a column of elements in the periodic table of the chemical elements.
5. a positively charged ion.
8. something that is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.
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.
13. subatomic particle with a positive electric charge and a mass slightly less than that of a neutron.
14. subatomic particle which has a neutral charge, and a mass slightly greater than that of a proton.