Across
- 2. An element with the atomic number 6
- 4. Is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions
- 6. A substance that is made of two or more elements
- 9. Its chemical symbol is H2O
- 10. A measure of the ability of a substance, or more generally of any physical system, to transfer heat energy to another physical system
- 11. The element with an atomic mass of 14.0067
- 12. Water freezes at 0° and boils at 100° under standard conditions.
- 14. It is defined as exactly 6.02214076×10²³ particles
- 15. It is the numerical equivalent of the atomic mass of an element
- 16. The english measurement of temperature
- 20. Any substance that cannot be composed into smaller substances by chemical processes
- 21. An arrangement of elements in order of atomic number
Down
- 1. a measurement of how much matter is in an object
- 3. An element with the O for symbol
- 5. A measurement system that uses kilo, centi, deci, etc.
- 7. An element with the symbol of K
- 8. the unit of length in the metric system
- 13. A compound with the chemical symbol NaCl
- 17. the first element in the periodic table
- 18. A measurement system that uses inches, foot,yard, etc.
- 19. A way of showing chemical proportions of atoms