Some say Comet Kachina is expected to arrive in November 2013, but there is no scientific proof of this.
It rather depends on the path of the comet. Some comets (such as Encke's comet) return in as little as 20 years - others might not return to our solar system for centuries (Comet McNaught has an orbital period of over 92,000 years !) It's possible to see at least one comet per year if the weather conditions ar favourable.
Two exceptions to the standard order of writing electron configurations are chromium (Cr) and copper (Cu). In chromium, instead of the expected configuration of [Ar] 4s² 3d⁴, the configuration is [Ar] 4s¹ 3d⁵ to achieve greater stability through half-filled subshells. Similarly, copper has an expected configuration of [Ar] 4s² 3d⁹, but it is actually [Ar] 4s¹ 3d¹⁰, as a fully filled d subshell also provides enhanced stability.
In the d block, there are two notable exceptions to the standard electron configurations: chromium (Cr) and copper (Cu). Instead of the expected configurations of [Ar] 3d⁴ 4s² for chromium and [Ar] 3d⁹ 4s² for copper, their actual configurations are [Ar] 3d⁵ 4s¹ and [Ar] 3d¹⁰ 4s¹, respectively. These deviations occur to achieve greater stability through half-filled and fully filled d subshells.
Copper sulfate (CuSO₄) contains copper (Cu) in the +2 oxidation state. In this state, copper has an electron configuration of [Ar] 3d⁹, resulting in one unpaired electron in the 3d subshell. Therefore, the expected number of unpaired electrons in CuSO₄ is one.
I got 1604 GET WRECKED
It rather depends on the path of the comet. Some comets (such as Encke's comet) return in as little as 20 years - others might not return to our solar system for centuries (Comet McNaught has an orbital period of over 92,000 years !) It's possible to see at least one comet per year if the weather conditions ar favourable.
Chromium and copper are well-known exceptions to the Aufbau principle. Chromium has an electron configuration of [Ar] 3d5 4s1 instead of the expected [Ar] 3d4 4s2, and copper has an electron configuration of [Ar] 3d10 4s1 instead of the expected [Ar] 3d9 4s2.
When a sale is made to a customer on credit, it creates an accounts receivable (AR). This AR is classified as a current asset on the balance sheet, as it represents money owed to the company that is expected to be received within a year. It reflects the company's right to collect cash from customers for goods or services provided on credit.
Antero Resources Corporation (AR)had its IPO in 2013.
When a sale is made to a customer on credit, it creates an accounts receivable (AR) that is classified on the Balance Sheet as a current asset. This is because accounts receivable are expected to be collected within one year or one operating cycle, whichever is longer. As a current asset, AR reflects the amounts owed to the company by customers for goods or services delivered but not yet paid for.
Two exceptions to the standard order of writing electron configurations are chromium (Cr) and copper (Cu). In chromium, instead of the expected configuration of [Ar] 4s² 3d⁴, the configuration is [Ar] 4s¹ 3d⁵ to achieve greater stability through half-filled subshells. Similarly, copper has an expected configuration of [Ar] 4s² 3d⁹, but it is actually [Ar] 4s¹ 3d¹⁰, as a fully filled d subshell also provides enhanced stability.
armando lite invent the AR 15 was 2011 november 2,wednesday
Müjde Ar is 57 years old (birthdate: June 21, 1954).
AR 600-55, 2007 was the last year published Army wide as far as I'm tracking.
Colt data at Proofhouse.com
ar exam
IT WAS RELEASED FOR SALE IN 2003.