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Atoms of Magnesium have 12 electrons. Elements in the periodic table with a neutral charge must all have a number of electrons equal to the number of protons in the nucleus. Since Magnesium has an atomic number of 12, and the atomic number is also known as the PROTON number, then it must also have 12 electrons to balance out the charge.
Magnesium has an Atomic Mass of about 24 - the other 12 units of mass being made up of neutrons.
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∙ 14y ago
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∙ 11y agoMg has 12
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What is the chemical symbol for an element whose atoms have 11 electrons?
For an neutral element that has the same number of electrons and protons, the element with 11 electrons is Na, sodium.
What element whose neutral atoms have ten neutrons?
Neon has 10 neutrons
Heaviest element whose atoms have more s electrons than p electrons?
The heaviest element whose atoms ave more s electrons than p electrons is helium. Helium is found in a wide variety of compounds, including water of H20, for instance.
What is the element in the fourth period whose atoms have the same number of electrons in their highest energy levels at that tins do?
bromine, i think
How many electrons are contained in an ion formed from an atom of K?
Potassium (K) is an alkali metal whose atoms have one valence electron. The atomic number of K is 19, which means its atoms have 19 protons in their nuclei. A neutral K atom also has 19 electrons. An atom of K will lose its single valence electron to become a K+ cation. Therefore, there are 18 electrons in a K+ cation.
What is the chemical symbol for an element whose atoms have 11 electrons?
For an neutral element that has the same number of electrons and protons, the element with 11 electrons is Na, sodium.
What is the element whose atom has 8 electrons when neutral?
The number of electrons corresponds to the "index" number of the element in the periodic table. The 8th element is Oxygen, which has 8 atoms when neutral. That didnt answer the question. ANSWER Neon has 8 electrons :)
A substance that contains the element whose atoms have 12 electrons indicate which element?
Magnesium atoms have 12 electrons.
How many electrons are in an oxygen atom that hasan atomic number of 8?
The atomic number of an element _is_ the number of electrons in one of its atoms. Indeed, a sample of an element can be defined as any combination of atoms with the same atomic number. Oxygen is the element with atomic number 8. It is the element whose atoms have 8 electrons in their neutral state (and 8 protons).
Element whose neutral atoms have twenty protons?
''CA" (CAlCiUM)
What element whose neutral atoms have ten neutrons?
Neon has 10 neutrons
Heaviest element whose atoms have more s electrons than p electrons?
The heaviest element whose atoms ave more s electrons than p electrons is helium. Helium is found in a wide variety of compounds, including water of H20, for instance.
What is metal with 20 electrons?
The metallic element whose atoms contain 20 electrons each is calcium, with atomic number 20. (The number of electrons in a neutral atom always matches the number of protons, which is the definition of atomic number.)
A substance whose atoms all contain the same number of protons and the same number of electrons are?
a neutral compound?
What is the element in the fourth period whose atoms have the same number of electrons in their highest energy levels that tins atoms do?
bromine, i think
Which elements is less reactive an element whose atoms have seven valence electrons or an element whose atoms have eight valence electrons?
the element with seven valence electrons will be more reactive. The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The element with eight valence electron is happy with its full shell and will not want to get rid of any electrons.
What is a form of an element whose atoms have the same number of protons but different numbers of electrons?
An atom with a different number of electrons is called an ion.
