Euka Science G10T2W10

2. The abbreviation for "potential of hydrogen"
4. A reaction that occurs when an acid is added to a base.
5. An example of oxidation.
9. When water is split apart, the result is oxygen and...?
11. What kind of ions do acids release?
13. The person who made the periodic table
16. The group that has elements that are shiny, soft and can be cut with a knife in the periodic table is called ... metals.
18. In the periodic table, a row is called a?
19. The element symbol of an atom with 26 protons
20. They have their own characteristics and they are pure substances.
21. When conducting an experiment, what should we always prioritize?
22. An element with an atomic number of 41 and the symbol Nb.
23. The ability of something to conduct electricity.

1. Group 3-12 in the periodic table is called the ... metals.
2. The scale that is most commonly used to measure electronegativity.
3. The electrons in the outermost shell that are the most active.
6. When 2 or more substances combine and form a new substance.
7. When an element loses or gains a neutron
8. Subatomic particle that has a negative charge
10. When elements or compounds rearrange themselves in an equation.
12. The mass number shows the number of protons &?
14. These types of atoms are unstable and change over time.
15. Helium and neon are in the same group and they are called ... gases.
17. The smallest part of any thing
19. The speed of a reaction that can be dangerous and even cause an explosion.
21. Oxygen has an atomic number of 8, so how many electrons are in the outermost shell?