1 / 9

How many protons, neutrons, and electrons does each element have?

How many protons, neutrons, and electrons does each element have?. Using the periodic table. Symbol (only the first letter is capitalized) Atomic number (the smaller whole number) Number of P+ Every element has a different number of protons Atomic weight

kaden
Download Presentation

How many protons, neutrons, and electrons does each element have?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. How many protons, neutrons, and electrons does each element have?

  2. Using the periodic table • Symbol (only the first letter is capitalized) • Atomic number (the smaller whole number) • Number of P+ • Every element has a different number of protons • Atomic weight • Listed at the bottom, never a whole number • Mass Number = atomic weight rounded to the nearest whole number. (the mass number is the total number of protons and neutrons added together)

  3. Finding the number of subatomic particles • # of protons = ATOMIC NUMBER of the atom

  4. Finding the number of subatomic particles • Protons = 36 (atomic number 36)

  5. Finding the number of subatomic particles • Protons = 36 (atomic number 36) • Electrons = 36 (same as the protons) • All atoms are neutral

  6. Finding the number of subatomic particles • Protons = 36 (atomic number 36) • Electrons = 36 (same as the protons) • All atoms are neutral • Neutrons = 48 (Mass number – Protons) • 84 - 36 = 48

  7. Finding the number of subatomic particles • Protons = the atomic number • Electrons = the # protons (because atoms are neutral) • Neutrons = Mass number – protons = neutrons • Use a periodic table for this

  8. Finding the number P+ No & e- • Example H • Atomic number 1 = 1 P+ 1e- • Neutrons = 1 - 1 = 0 so no neutrons Try elements Fe, C & F

  9. Answers • Fe 26 protons 26 electrons 56 - 26 = 30 Neutrons C 6 protons 6 electrons 12 - 6 = 6 neutrons F 9 protons 9 electrons 19 - 9 = 10 neutrons

More Related