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The element calcium, or Ca, is located in group 2, period 4 of the Periodic Table. Therefore, its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2. This can also be written as [Ar] 4s2, because the beginning of that electron configuration is the same as argon's. The 42 you mentioned in your question is referring to a specific isotope of calcium and has nothing to with the electron configuration.
Corene Breitenberg
Wiki User
∙ 15y agoThe electron configuration for Calcium (Cl) is 1s2, 2s2, 2p6, 3s2, 3p5
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What are the examples of elements with predictable electron configurations?
All of the representative elements (s and p block) have predictable electron configurations. However, many of the transition elements have electron configurations that are not predicted by the rules for determining electron configuration.
The elements Li and F combine to form an ionic compound The electron configurations in this compound are the same as the electron configurations of atoms in which group?
Group 18
Which elements have electron configurations that end in ns2np5?
halogens
Which elements have electron configurations that end in ns 2 and np 5?
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
Which elements have electron configurations that end in ns 2 np 5?
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
How do you write out the electron configurations of solutions?
Solutions are mixtures of one or more solutes dissolved in a solvent. They do not have electron configurations. Only atoms and ions have electron configurations.
What are the examples of elements with predictable electron configurations?
All of the representative elements (s and p block) have predictable electron configurations. However, many of the transition elements have electron configurations that are not predicted by the rules for determining electron configuration.
The elements Li and F combine to form an ionic compound The electron configurations in this compound are the same as the electron configurations of atoms in which group?
Group 18
What have stable electron configurations?
any time there are as many electrons and protons and they fill each orbital optimally.
How are noble gas configurations different from electron configurations?
The externall shell of electrons is completely filled.
What are the full electron configurations for strontium Z 38?
The electron configuration of strontium is 1s22s22p63s23p63d104s24p65s2.
Which elements have electron configurations that end in ns2np5?
halogens
Which elements have electron configurations that end in ns 2 and np 5?
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
Which elements have electron configurations that end in ns 2 np 5?
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
What groups have electron configurations that end with 1 electron in the P-Block?
group 13 or IIIA
Is true about the electron configurations of the representative elements?
Each neutral atom has a specific electron cofiguration.
The electron configurations for sulfur and mercury?
The electron configuration for sulfur is [Ne]3s2.3p4.The electron configuration for mercury is [Xe]4f14.5d10.6s2.
