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Science question of great importance here.

Ok so I’m confused about finding the number of electrons/protons/neutrons in different elements.
The main trouble I have is when a problem says for example: Fe (3+) the 3+ being written slightly above the fe.
How many protons and electrons would this have for p+ and e- ?
THANK YOU SO MUCH FOR YOUR HELP

This open post was written 11 months, 3 weeks ago | V/U/S: 266, 3, 4 | Edit Post | Leave a reply | Report Post


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. - : 2511 : - . offline Verified User (1 year, 3 months) Long Term User Shouts: 14 #
An Unknown Location | 11 months, 3 weeks ago (11 minutes after post)

that means that the Fe has lost 3 electrons (e-), so it has a positive charge of +3
which is the atomic number of the Fe in the table of elements…?

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ben_j_richard offline Verified User (1 year, 11 months) Long Term User Shouts: 39 #
GB | 11 months, 3 weeks ago (14 minutes after post)

ok well goes like this.

protons have chagre +1
electrons have charge -1
neutrons have charge 0

so Fe 3+ means it has an over all chare of 3+ therefore there must be 3 more protons than electrons right

eg. 6 electrons and 9 protons tht would mean 9-6 = 3

ok so to find the numbers you need two quantities.

Firstly the atomic number, this tells you how many protons. for Fe this is 26.

so protons = 26

now we need three more protons than electrons

so electrons = 23

The second number you need is the mass number this tells you the number of protons + electrons

for fe this is about 56

so therefor number of neutrons is 56-26 = 30

so neutrons = 30

/// therefore protons = 26, electrons = 23, neutrons = 30

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Barbyman offline Verified User (2 years, 5 months) Long Term User Shouts: 5 #
An Unknown Location | 11 months, 3 weeks ago (8 hours, 6 minutes after post)

I wish i knew what you are talking about.I come from the time gone by.Sorry cant help you there…

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