- All Atoms Of The Same Element Must Have The Same Number Of Steps
- All Atoms Of The Same Element Must Have The Same Number Of Numbers
- All Atoms Of The Same Element Must Have The Same Number Of Units
- All Atoms Of The Same Element Must Have The Same Number Of Elements
Category: Chemistry Published: March 13, 2014
No. Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different. The excited copper atom will emit a bit of light when the electron relaxes back down to the ground state, and the copper atom already in the ground state will not. Since the states of the electrons in an atom are what determine the nature of the chemical bonding that the atom experiences, two atoms of the same element can react differently if they are in different states. For instance, a neutral sodium atom (say, from a chunk of sodium metal) reacts with water much more violently than an ionized sodium atom (say, from a bit of salt). Chemists know this very well. It's not enough to say what atoms are involved if you want to fully describe and predict a reaction. You have to also specify the ionization/excitation states of the electrons in the atoms. Even if left alone, an atom often does not come with an equal number of protons and electrons.
All Atoms Of The Same Element Must Have The Same Number Of Steps
But what if two atoms of the same element both have their electrons in the same states. Then are they identical? No, they are still not identical. Two atoms of the same element and in the same electronic state could be traveling or rotating at different speeds, which affects their ability to chemically bond. Slower moving atoms (such as the atoms in solid iron) have time to form stable bonds, while faster moving atoms (such as the atoms in liquid iron) cannot form such stable bonds. A slow moving tin atom acts differently from a rapidly moving tin atom.
But what if two atoms of the same element both have their electrons in the same states, and the atoms are both traveling and rotating at the same speed. Then are they identical? No. Although two such atoms are essentially chemically identical (they will chemically react in the same way), they are not completely identical. There's more to the atom than the electrons. There's also the nucleus. The nucleus of an atom contains neutrons and protons bonded tightly together. The same chemical element can have a different number of neutrons and still be the same element. We refer to the atoms of the same element with different numbers of neutrons as 'isotopes'. While the particular isotope involved does not affect how an atom will react chemically, it does determine how the atom will behave in nuclear reactions. The most common nuclear reaction on earth is radioactive decay. Some isotopes decay very quickly into other elements and emit radiation, while other isotopes do not. If you are doing carbon dating, the fact that a carbon-12 atom is not identical to a carbon-14 atom is essential to the dating process. Simply counting the number of carbon atoms in a sample will not give you any information about the age of a sample. You will have to count the number of different isotopes of carbon instead.
Citrix receiver raspberry pi 3. But what if two atoms are the same element, have electrons in the same state, are traveling and rotating at the same speed, and have the same number of neutrons; then are they identical? No. Just like the electrons, the neutrons and protons in the nucleus can be in various excited states. In addition, the nucleus as a whole can rotate and vibrate at various speeds. Therefore, even if all else is identical, two gold atoms can have their nuclei in different excited states and behave differently in nuclear reactions.
All Atoms Of The Same Element Must Have The Same Number Of Numbers
To state the case succinctly, it is very hard to have two atoms of the same element be exactly identical. In fact, succeeding in coaxing a group of atoms to be very close to identical was worthy of a Nobel Prize. With that said, don't think that atoms have individual identities beyond what has been mentioned here. If two carbon atoms are in the exact same molecular, atomic, electronic and nuclear states, then those two carbon atoms are identical, no matter where they came from or what has happened to them in the past.
Since isotopes of any given element all contain the same number of protons, izvoru47 and 6 more users found this answer helpful 4.0 (5 votes). If two atoms are isotopes of the same element, the atoms must have. Isotopes - Regents Chemistry DRAFT. 10th - 12th grade. The same number of protons and the same.
All Atoms Of The Same Element Must Have The Same Number Of Units
Why do all atoms of an element have the same atomic number?
1 Answer
Because atoms of an element has, essentially, the same number of protons.
Explanation:
For ground state (no charge) atoms, you have to remember the following facts:
1.) The atomic number is the same as the number of protons.
2.) The number of electrons is the same as the number of protons.
3.) The atomic mass is the sum of the number of protons and neutrons.
All atoms of the same element must have the same number of what? Dalton believed that all atoms of the same element have the same mass. He said that compounds are formed when atoms of more than one element combine. According to Dalton, in a certain compound, the atoms of the compound's elements always combine the same way. In 1827, British scientist Robert Brown looked at pollen grains in water under his.
For ions (which may either have a positive or negative charge), only the number of electrons are being changed. If the ion is negative it means that an electron has been added to the configuration. If the ion is positive, it means that an electron is removed from the configuration. Sky go.
For example,
#Na# (atomic number = 11) : #1s^2##2s^2##2p^6##color (red) (3s^1)# (ground state)
#Na^'+1'#(atomic number = 11) : #1s^2##2s^2##color (blue) (2p^6)# (lost 1 #e^-#)
Description All eBooks Reader is an all-in-one eBook reader app supporting popular digital publication formats including EPUB, MOBI, AZW and AZW3 for Kindle, PDF, comic books files, XPS, CHM, and more. The app provides optimal book reading experience with easy navigation through books. GitHub - troyeguo/koodo-reader: 📚 A modern ebook manager and reader for epub, pdf, mobi, azw3 and txt, supporting Windows, macOS, Linux and Web. (跨平台的电子书阅读器，支持 epub, pdf, mobi, azw3 和 txt. Azw3 Reader free download - ZIP Reader, PDF Reader for Windows 7, Adobe Acrobat Reader DC, and many more programs. Online Azw3 Reader, Online reader, free to read hundreds of file formats online, no need to install, open and use, support any platform. Online PDF Reader, online Word Reader, online Excel Reader, online PowerPoint Reader, PSD Reader, etc., e-book Reader, etc.
#Cl# (atomic number = 17) : #1s^2##2s^2##2p^6##3s^2##color (red) (3p^5)# (ground state)
#Cl^'-1'# (atomic number = 17) : #1s^2##2s^2##2p^6##3s^2##color (red) (3p^6)# (gain 1 #e^-#)
All Atoms Of The Same Element Must Have The Same Number Of Elements
For isotopes (elements that have different masses, no charge), only the number of neutrons has been changed. Examples are Carbon-12, Carbon-13, and Carbon-14.
Carbon-12 : 6 protons + #color (green) ('6 neutrons')#
Carbon-13 : 6 protons + #color (magenta) ('7 neutrons')#
Carbon-14 : 6 protons + #color (orange) ('8 neutrons')#
Because none of these situations change the number of protons, the atomic number stays the same regardless.
Related questions
