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∙ 11y agoMagnesium
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Which elements have the same energy levels of aluminum?
Aluminum has it's valence electrons in the 3rd energy level. Others that also have valence electrons in n=3 would be Na, Mg, Si, P, S, and Cl. Argon also has a filled 3rd level.
What do the rows in a periodic table group together?
The rows on the periodic table correspond to the highest energy level being filled by the elements in that row (period). For example, in period 3, the elements are filling their valence shell in the 3rd energy level from left to right across the period, from 3s1 in sodium to 3s23p6 in argon.
If an electrically neutral atom has an atomic number of 17 and an atomic mass of 36 how many electrons will it possess?
The atomic number of 17 is the number of protons in nucleus of the atoms of this element (chlorine, Cl). In a neutral atom, the numbers of protons and electrons are equal, so this atom also has 17 electrons. The mass number in this problem is a distractor, and does not contribute to solving the problem. You can use electron configuration to figure out how many electrons are in the second energy level: 1s22s22p63s23p5. You can see that there are 8 electrons in the second energy level in the 2s and 2p orbitals. You also can look Cl up on the periodic table and see that it is in the 3rd period, which means that its second energy level is full (meaning 8 electrons). The last element to add to the second energy level is the noble gas neon (Ne) in the 2nd period. Neon's 2nd energy level is completely filled. So the next element, sodium (Na), starts adding electrons to the 3rd energy level, and its the first element in the 3rd period. All of the rest of the 3rd period elements continue adding electrons to the 3rd energy level s and p orbitals, until the noble gas Argon (Ar), which fills the 3rd energy level s and p orbitals.
How many electrons are needed to completely fill the 3rd energy level?
6
What has 12 neutrons and 1 electron in the 3rd level of the periodic table?
Sodium has 1 electron in the third energy level. 11Na23 isotope has 12 neutrons.
What is the lowest numbered energy level where a d sublevel is found?
4. 1st shell: s subshell 2nd shell: s and p subshells 3rd shell: s, p and d subshells 4th shell: s, p, d and f subshells
Which atom has a completely filled 3rd principal enery level?
Nobel gases are said to have completely filled third principle energy level. One example is Argon which is a noble gas.
How many orbitals are there for each level and the number of electrons?
1st energy has 1 sublevel -- 1 orbital -- 2 electrons 2nd energy level has 2 sublevels -- 4 orbitals -- 8 e- 3rd energy level has 3 sublevels -- 9 orbitals -- 18 e- 4th energy level has 4 sublevels -- 16 orbitals -- 32 e- Notice the pattern? number of orbitals = energy level squared Number of electrons = 2x number of orbitals
Which elements have the same energy levels of aluminum?
Aluminum has it's valence electrons in the 3rd energy level. Others that also have valence electrons in n=3 would be Na, Mg, Si, P, S, and Cl. Argon also has a filled 3rd level.
How many electrons fill the 3rd energy level?
In the 3rd energy level, there can be a maximum of 4 electrons.
What is the highest occupied energy level for chlorine?
The 3rd energy level is the highest occupied energy level for chlorine with seven electrons.
What information is given by the angular momentum quantum number?
Each atomic orbital is designated by the principal quantum number followed by the letter of the sublevel. -for more information see..."Modern Chemistry" text book Pg.108 3rd and 4th paragraph.
What are the highest occupied energy levels in aliminium?
The highest occupies energy level in aluminum is the 3rd energy level. Its electron configuration is 1s22s22p63s23p1.
What electron sublevel starts to fill after completion of the 4d sublevel?
It goes 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p... it goes according to the principal quantum number, l. the subshells (or energy levels) have corresponding letters... 0th sublevel: s 1st sublevel: p 2nd sublevel: d 3rd sublevel: f 4th: g 5th: h 6th: i etc. usually, we dont use energy levels above the f subshell.
Can there be more than 20 electrons in the third energy level?
no, up to 18 electrons only in the 3rd energy level.
What is magnesium's highest occupied energy level?
Magnesium is 1s22s22p63s2 and so the 3rd energy level is the highest occupied level.
What do the rows in a periodic table group together?
The rows on the periodic table correspond to the highest energy level being filled by the elements in that row (period). For example, in period 3, the elements are filling their valence shell in the 3rd energy level from left to right across the period, from 3s1 in sodium to 3s23p6 in argon.
