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which one of the following groupings represents a collection of isoelectronic species1 na ca2 mg2 2 n3 f- na3 be al3
the nucleus of tritium contains1 1 proton 1 neutron 2 1 proton 3
an element have atomic weight 40 and its electronic configuration is 1s2 2s2 2p6 3s2 3p6 then its atomic number and number of neutrons will be1 18
iso-electronic species is1 f-o-2 2 f-
the charge of an electron is -16 x10-19c the value of free charge on li ion will be1 36x 10-19c
which of the following is not isoelectronic1 na 2
the atomic number of an element is 35 and mass number is 81 the number of electrons in the outer most shell is1 7 2
the atomic number of an element is 17 the number of orbitals containing electron pairs in its valence shell is1 eight
the nitride ion in lithium nitride is composed of1 7 protons 10 electrons 2 10 protons 10 electrons 3 7 protons 7 protons4
explain the gonadotropic hormones gththere are two gonadotropic hormones which regulate gonadal functions they are follicle stimulating hormone fsh
water pressure changes with depthuse the funnel and manometer which you made in the last experiment fill a tall glass jar or pail with water
if molecular mass and atomic mass of sulphur are 256 and 32 respectively its atomicity is1 2 2 8
to show that liquids exert pressureconnect two 15 cm lengths of glass tubing or two transparent plastic soda straws with a short length of rubber
the difference between weight and pressuremake two square blocks of wood one much lesser than the other and link them together as shown in the
explain the adrenocorticotropic hormone acthacth also known as corticotrophin is a polypeptide and is synthesized by corticotroph cells of the
joe walked 2 12 miles to school 13 mile to work and 1 14 miles to his friends house how several miles did joe walk altogetherto find out the total
the meaning of pressurecalculate the area using squared paper and measure the force per square centimetre standing on one foot will deal out your
explain the thyroid stimulating hormone tshtsh also known as thyrotropin is a glycoprotein and synthesized by thyrotroph cells of the anterior
mark has three 4 12 oz cans of tomatoes and ve 8 14 oz cans how many ounces of tomatoes does mark haveignore the fractional parts of the mixed
explain the hypersecretion during childhoodhypersecretion during childhood due to an increased secretion of the growth hormone gigantism occurs there
explain the hyposecretion during adult lifehyposecretion during adult life it is only currently becoming recognized the usual feature being low blood
explain the hyposecretion during childhoodhyposecretion during childhood due to deficiency of growth hormone or its receptors stunted growth of the
define growth hormone ghit is a protein containing 19lamino acids in a single chain it is secreted by somatotrophs throughout life even though growth
lisa was assigned 64 pages to read for english class she has nished of the assignment how many more pages must she readif lisa has read 34 of the
nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8 the total number of electrons in a nitrate ion will be1