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What is true about the element calcium Ca atomic number 20 A It has 2 valence electrons B It has 4 valence electrons C It is a nonmetal D It is reactive E It is metal?
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∙ 7y ago
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∙ 7y ago
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Which element has an atom with 20 electrons?
Calcium is the element that has the atomic number 20.
Is calcium chemically unreactive?
Calcium is a reactive chemical element.
Why does calcium have a charge of 2 plus?
Calcium donates two electrons (charged -2) in reaction with a nonmetal. Substracting this from the zero (of the non-charged element) it leaves the +2 charge of the ion Ca2+Ca --> Ca2+ + 2e-
Does two valence electrons is a reactive or non reactive?
The outer shell of an atom is most stable or non reactive with 8 electrons. 1 or 2 valence electrons would be reactive. It also would depend if it's bonded with another element.
What is the charge of valence electrons of calcium?
Yes, calcium has valence electrons - two, in fact (it is a divalent chemical element).
What is an reactive nonmetal?
A reactive non metal is an element that can gain the electrons or is more electronegative
Which element has an atom with 20 electrons?
Calcium is the element that has the atomic number 20.
Is calcium chemically unreactive?
Calcium is a reactive chemical element.
If calcium is not a mineral what is it?
Calcium is an element, silvery metallic, soft, and reactive.
Which element is more reactive calcium or pottasium?
Potassium.
Is calcium flammable?
calcium is pretty reactive with certain element but not others
Is fluorine the most reactive nonmetal?
With greater ionization energy, nonmetals have greater reactiveness. This is because they don't want to lose electrons at all! They will instead gain electrons to complete the octet.This proves true in the element Fluorine.
Which nonmetal of the periodic table has 10 electrons?
The element Neon
Is the element reactive or satble how do you know?
If the element has a full valence shell, such as the noble gases, then it is unreactive. It the element is missing few valence electrons of has few valence electrons, then the element is very reactive, such as the sodium.
How many electrons do the calcium?
Calcium is a metal element. There are 20 electrons in a single atom.
If an element has a total of 86 electrons is it inert reactive or non reactive?
This is radon, it has a full outer shell of electrons, so it is technically non reactive
Why does calcium have a charge of 2 plus?
Calcium donates two electrons (charged -2) in reaction with a nonmetal. Substracting this from the zero (of the non-charged element) it leaves the +2 charge of the ion Ca2+Ca --> Ca2+ + 2e-
