What atom has a stable valence electron configuration?
Noble gases (group 18) are called noble because of their stability. They are stable because they all have filled outer octet and thus, we should be looking for a noble gas among the answer choices. Choice 3, Neon is the correct answer choice since it's a noble gas.
Which element has a stable electron configuration?
Group 18 elements (helium, neon, and argon are shown in Figure 2) have a full outer, or valence, shell. A full valence shell is the most stable electron configuration.
What elements valence configuration is most stable?
The noble gases The noble gases rarely form compounds. They have the most stable configuration (full octet, no charge), so they have no reason to react and change their configuration.
When an atom bonds with another atom its electron configuration is similar to the closest element in which group?
Group 18 Note Most atoms in a bond has the same number of electrons and similar electron configuration as the nearest noble gas (Group 18) atom.
Which are the most stable atoms?
But, what about helium and other noble gases? They are considered the most stable elements in the whole periodic table.
What is a stable configuration?
(a) Stable electronic configuration means an atom in which the outermost (valence) shell is complete.
How do atoms achieve a stable electron configuration?
Therefore, by sharing valence electrons, atoms achieve a stable electronic configuration. Note: According to the octet rule, the atom has eight electrons in the valence shell that are stable but the octet of hydrogen gets completed by two electrons only.
What is a stable electron configuration?
Stable configuration Their valence shell is complete. They have two or eight electrons in their valence shell. They do not gain, lose or share electrons.
What is 1s 2s 2p 3s 3p?
1s 2s 2p 3s 3p represents the electron orbital energy levels.
Which among the following shows that an atom is stable?
A stable atom has a net charge of 0. In other words, it has an equal number of protons and electrons. The positive protons cancel out the negative electrons. When the number of electrons does not equal the number of protons, the atom is ionized.
Which of the following is a stable element?
Most of the stable elements are having 'Octet Electron Configuration'. Other examples are Neon(Ne), Argon(Ar), Krypton (Kr), Xenon (Xe), Radon (Rn).
What makes an atom stable?
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.
What is an example of a stable electron configuration?
According to the periodic table, some examples of stable electron configurations are: Helium. Neon {10 (2 + 8) electrons} Argon {18 (2 + 8 + 8)}
How do atoms attain stable configuration?
Atoms of other elements have unstable electronic configuration. Their valence shell is incomplete. They tend to attain stable configuration of the nearest inert gas by gaining or losing electrons or by sharing electrons.
Which element has the electron configuration of 1s 2 2s 2 2p 6 3s 2 3p 4?
According to the periodic table, this element is sulfur.
What is 1s 2s 3s 4s 5s?
The order of increasing energy of the sublevels: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d … This order corresponds to the order in which the energy sublevels are filled by electrons. nucleus. 1s.
What is an example of a stable atom?
Most atoms are stable; a carbon-12 atom for example remains a carbon-12 atom forever, and an oxygen-16 atom remains an oxygen-16 atom forever, but certain atoms eventually disintegrate into a totally new atom. These atoms are said to be 'unstable' or 'radioactive'.
What are the stable elements in the periodic table?
Stable Isotopes Chart – Stable Isotopes of all the elements in table chart
| Element Atomic Number | Element Symbol | Element Name |
|---|---|---|
| 1 | H | Hydrogen |
| 2 | He | Helium |
| 3 | Li | Lithium |
| 4 | Be | Beryllium |
What elements are the most stable?
(+) There are some 90+ elements of the periodic table that occur naturally in the Universe, but of them all, iron is the most stable.
Which of these elements has an atom with the most stable outer electron configuration?
Group 18 elements (helium, neon, and argon) have a full outer, or valence, shell. A full valence shell is the most stable electron configuration. Elements in other groups have partially filled valence shells and gain or lose electrons to achieve a stable electron configuration.
How many valence electrons are stable?
eight electrons Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule.
How do the atoms acquire stable configuration?
Therefore, by sharing valence electrons, atoms achieve a stable electronic configuration. Note: According to the octet rule, the atom has eight electrons in the valence shell that are stable but the octet of hydrogen gets completed by two electrons only.
Which among the following shows that an atoms is stable?
A stable atom has a net charge of 0. In other words, it has an equal number of protons and electrons. The positive protons cancel out the negative electrons. When the number of electrons does not equal the number of protons, the atom is ionized.
What element has the electron configuration 1s 2 2s 2 2p 3?
1 Answer. The element nitrogen has the electron configuration 1s22s22p3 .
What element is best represented by the electron configuration 1s 2 2s 2 2p 4?
Looking at the periodic table, you can see that Oxygen has 8 electrons. Based on the order of fill above, these 8 electrons would fill in the following order 1s, 2s and then 2p. So Oxygen's electron configuration would be O 1s22s22p4.
What element has the electron configuration 1s 2s 2p 3s 3p?
| Element | Atomic number | Electron configuration |
|---|---|---|
| magnesium | 12 | 1s22s22p63s2 |
| aluminum | 13 | 1s22s22p63s23p1 |
| silicon | 14 | 1s22s22p63s23p2 |
| phosphorus | 15 | 1s22s22p63s23p3 |
Which atom is the most stable?
Yes, iron or more precisely an isotope of iron know as iron-56 is the most stable element known.
What is a stable atom?
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.
Which elements group are stable?
Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.
What is valence electron configuration?
Key Terms. Valence electrons – the electrons located at the outermost shell of an atom. Electron configuration – the arrangement of electrons around the nucleus of an atom.