Does sodium have 7 electrons?

Sodium has 11 electrons: its atomic number is 11, so it has 11 protons; atoms are neutral, so this means sodium also has 11 electrons. Electrons are arranged in “shells” or energy levels. The second “shell” can have up to 8 electrons.

Do you have 11 electrons?

We know that the atomic number of sodium is 11. This tells us that sodium has 11 protons and because it is neutral it has 11 electrons. The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass).

Does sodium have 1 valence electrons?

A: An atom of a group 1 element such as sodium has just one valence electron. It is “eager” to give up this electron in order to have a full outer energy level, because this will give it the most stable arrangement of electrons.

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What family has 8 valence electrons?

Noble Gases The Group 18 elements are the noble gases. Atoms of the noble gases have 8 valence electrons, except for helium, which has 2.

How many valence electrons are in Na+?

The properties of Na+ ion and the sodium atom are different from each other. The positive charge dictates all the properties of Na+ , since otherwise it is stable and inert with its eight electrons in the valence shell.

How many valence electrons sodium have?

A: An atom of a group 1 element such as sodium has just one valence electron. It is “eager” to give up this electron in order to have a full outer energy level, because this will give it the most stable arrangement of electrons.

How many atoms does sodium have?

This is because there is 1 atom of Na (sodium) and 1 atom of Cl (chlorine) in each NaCl molecule. Elements by themselves do not have a “number of atoms”- if you’re talking about the atomic number, it’s the number of protons (or electrons in a neutral atom) of an element.

What element is in period 4 Group 12?

zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic table—namely, zinc (Zn), cadmium (Cd), mercury (Hg), and copernicium (Cn).

What family has 5 valence electrons?

Atoms in the nitrogen family have 5 valence electrons. They tend to share electrons when they bond. Other elements in this family are phosphorus, arsenic, antimony, and bismuth.

How many protons electrons and neutrons does sodium have?

So sodium has 11 protons and 11 electrons. The mass number is 23. The number of neutrons = mass number – atomic number. The number of neutrons = 23 – 11 = 12.

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How many protons neutrons and electrons are in sodium 24?

The atoms of both isotopes contain 11 protons, but sodium-23 has 12 neutrons whereas sodium-24 has 13.

How many protons does boron have?

When scientists count four protons in an atom, they know it’s a beryllium atom. An atom with three protons is a lithium atom, an atom with five protons is a boron atom, an atom with six protons is a carbon atom… the list goes on.

Does a sodium ion have 8 valence electrons?

Sodium has one valence electron. The element has a full innermost electron shell of two electrons and a full shell of eight electrons in the next shell. The third shell, which is the outermost and the valence shell, has only one electron. Valence electrons influence chemical reactivity.

What is the valence electron number in :- a sodium ion () b oxide ion ()?

Answer : (a) 8 is the number of valence electrons in sodium ion, Na+ has the electronic configuration of 2, 8. (b) 8 is the number of valence electrons in oxide ion, as O2- have the electronic configuration of 2, 8.

How many electrons are in sodium outer shell?

The outermost shell of the sodium ion is the second electron shell, which has eight electrons in it. The octet rule has been satisfied.

What is the 2-8-8 rule in chemistry?

There is a 2-8-8 rule for these elements. The first shell is filled with 2 electrons, the second is filled with 8 electrons, and the third is filled with 8. You can see that sodium (Na) and magnesium (Mg) have a couple of extra electrons. They, like all atoms, want to be happy.

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Are there 8 or 18 electrons in the third shell?

The third shell in its lowest state has room for 8 electrons but including the higher energy 3d electrons it has a capacity of 18 electrons.

How many orbitals does sodium have?

When we write the configuration we’ll put all 11 electrons in orbitals around the nucleus of the Sodium atom. In writing the electron configuration for sodium the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for sodium go in the 2s orbital.

How many electrons does NaCl have?

A salt such as sodium chloride (NaCl) is a good example of a molecule with ionic bonding (see Figure 3-3). The atomic number of the element sodium (Na) is 11, meaning that a sodium atom possesses eleven protons and eleven electrons. Its electronic configuration is 1s2 2s2 2p6 3s1.

What is group 8 on the periodic table called?

Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.

What element has 7 valence electrons and 6 shells?

Nitrogen has 7 electrons — 2 in the first shell, and 5 in the second shell (so five valence electrons). Oxygen has 8 electrons — 2 in the first shell, and 6 in the second shell (so six valence electrons). Fluorine has 9 electrons — 2 in the first shell, and 7 in the second shell (so seven valence electrons).

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