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arsenic
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∙ 11y ago
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What element has 2 electrons in the 1s sublevel and 4 electrons in the 2s level?
An element cannot have 4 electrons in the 2 s level. The s subshell can hold only TWO electrons. Carbon has 4 electrons in the 2p level, however, if that's what you meant.
Identify the period block and group of ne3s2 3p4?
The element is sulfur (S, #16). [Ne] means neon is the nearest noble gas with a lower atomic number. The 3s23p4 means electrons have filled the 3s2 sublevel, and 4 out of 6 possible locations in the 3p sublevel are occupied. Adding the number of electrons to neon (2+4+10) gets you 16, which identifies the element. Sulfur is in period 3, which corresponds to the unfilled level of electrons. The group is 16(6A). Sulfur is considered a p-block element, because its valence electrons partially fill the p sublevel.
What is the number of electrons in the third principal energy level in an atom having the electron structure 1s2 2s2 2p6 3s2 3p2?
The element with that electron configuration has 4 electrons in the third level. There are 2 electrons in the 3s sublevel and 2 more electrons in the 3p sublevel. This means 4 valence electrons total. This element is silicon (Si, #14).
What element has 4 electrons in the 3p sublevel?
To find the element with a 3p4 valence configuration, look in period 3 and group XVI, and that is ...S, sulfur.
How many electron orbitals calcium have?
Zero. Calcium has two electrons in its 4s sublevel, and none in the 3d sublevel. The 3d sublevel doesn't start filling until after the 4s sublevel is filled.
This element has two electrons in the 1st sublevel and 4 electrons in the 2nd sublevel?
CARBON
What element is a period 4 non metal with 3 electrons in the 4p sublevel?
Selenium or Se
What element has 2 electrons in the 1s sublevel and 4 electrons in the 2s level?
An element cannot have 4 electrons in the 2 s level. The s subshell can hold only TWO electrons. Carbon has 4 electrons in the 2p level, however, if that's what you meant.
Identify the period block and group of ne3s2 3p4?
The element is sulfur (S, #16). [Ne] means neon is the nearest noble gas with a lower atomic number. The 3s23p4 means electrons have filled the 3s2 sublevel, and 4 out of 6 possible locations in the 3p sublevel are occupied. Adding the number of electrons to neon (2+4+10) gets you 16, which identifies the element. Sulfur is in period 3, which corresponds to the unfilled level of electrons. The group is 16(6A). Sulfur is considered a p-block element, because its valence electrons partially fill the p sublevel.
What is the number of electrons in the third principal energy level in an atom having the electron structure 1s2 2s2 2p6 3s2 3p2?
The element with that electron configuration has 4 electrons in the third level. There are 2 electrons in the 3s sublevel and 2 more electrons in the 3p sublevel. This means 4 valence electrons total. This element is silicon (Si, #14).
What element has 4 electrons in the 3p sublevel?
To find the element with a 3p4 valence configuration, look in period 3 and group XVI, and that is ...S, sulfur.
How many electron orbitals calcium have?
Zero. Calcium has two electrons in its 4s sublevel, and none in the 3d sublevel. The 3d sublevel doesn't start filling until after the 4s sublevel is filled.
Which element has 3 electrons in the 2p sublevel?
Aufbau says that the sublevels fill 1s2, 2s2, 2p6. That would mean that you must have filled 1 and 2 s (=4) and 3 more. Last I checked, 3 + 4 = 7. Which element has 7 electrons? I'll give you a hint: its atomic number is 7. Another hint: its symbol is N.
How many electrons will an element in group 2 of the periodic table have?
That varies, element #3 will have 3, element 4 will have 4, etc. However, they all have 2 valence electrons.
How many electrons can occupy the 4f sublevel?
The elements in period 4 that have electrons in the 3d sublevel are elements 21 - 36. Refer to the Related Links for a printable periodic table that includes electron configurations.
What does the number 4 mean in the equation 1s2 2s2 2p4?
4 is the number of electrons in that sublevel.
Element 3 lithium has one valence electron and element 4 beryllium has two valence electrons Element 5 boron has how many valence electrons?
Boron has 3 valence electrons.Boron has 3 valence electrons.
