Periodic Table

3. Particles with a negative charge.
8. Element with the symbol He.
13. It is the measure of the ability of an atom in a bond to attract electrons to itself.
14. Atomic ____________ represents the number of protons and is fixed for every element.
15. Which is the element with the lowest electronegativity?
16. They are ions that are negatively charged.
18. Number of periods in the periodic table.
20. They are ions that are positively charged.
22. Element with the symbol Br.
23. Atomic ________ is the distance from the atom’s nucleus to the outer edge of the electron cloud.
24. Chemical elements that are solid shiny, ductile, malleable and good conductors of heat and electricity.

1. The most abundant element on Earth.
2. Particles with a positive charge.
4. Comprise of the most reactive group of non-metals, also called salt farmers.
5. _________ State is the formal charge on the atom if all bonds were assumed to be fully ionic.
6. Electron _____________ is the way electrons are arranged around the nucleus.
7. Possess some properties of metals and non-metals; they are moderate conductors of heat and electricity.
9. Atomic __________ is equal to the sum of protons and neutrons.
10. They are the vertical columns in the Periodic Table.
11. Who is the inventor of the periodic table?
12. First element in the periodic table.
17. Element with the symbol Na.
19. _____________ Shell is the outermost layer of an atom.
21. They are the horizontal rows in the Periodic Table.