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Which element has a smaller ionization energy Cs or Sr?
Cs has a smaller ionization energy than Sr. This is because Cs has a larger atomic radius and its valence electron is farther from the nucleus, making it easier to remove compared to Sr which has a smaller atomic radius and stronger nuclear attraction.
Rank these elements in terms of increasing atomic radius?
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.
What is the balanced equation for rubidium-87 turns into strontium-87?
this is an example of β radiation, n -> p + e Rb-87 -> Sr-87 + e (rem to write atomic numbers in, Rb is 37 and Sr is 38) The halflife 87Rb is 4,88.1010 years.
Which energy sublevel is being filled by the elements Rb to Sr?
The energy sublevel being filled by the elements Rb (rubidium) to Sr (strontium) is the 5s sublevel. These elements are in the fifth period of the periodic table, and in period 5, the s sublevel starts to fill up with electrons.
What is the relationship between the atomic number of an element and its atomic radius from the graph of your lab report?
Atomic number = number of protons Atomic mass number = number of protons + number of neutrons Relative mass number = the weighted average mass numbers of the naturally occurring isotopes as compared to C-12 If you delete the atomic number from the mass number you get the number of neutrons. The atomic number is the number of protons and electrons. (They are both the same number.)
Which element has a smaller ionization energy Cs or Sr?
Cs has a smaller ionization energy than Sr. This is because Cs has a larger atomic radius and its valence electron is farther from the nucleus, making it easier to remove compared to Sr which has a smaller atomic radius and stronger nuclear attraction.
Rank these elements in terms of increasing atomic radius?
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.
What is the balanced equation for rubidium-87 turns into strontium-87?
this is an example of β radiation, n -> p + e Rb-87 -> Sr-87 + e (rem to write atomic numbers in, Rb is 37 and Sr is 38) The halflife 87Rb is 4,88.1010 years.
What is the atomic number of Sr?
Strontium is a metal element. atomic number of it is 38.
What is SR and RB in geological isochron?
In a geological isochron, SR stands for "slop ratio" and RB stands for "ratio of initial isotopes." SR represents the slope of the isochron line, which gives information about the age of the sample. RB refers to the initial isotopic composition of the sample, which helps in interpreting the geological history and processes.
What is the electron configuration for element kr?
The lowest atomic number ion is Se^2-. The highest atomic number ion is Sr^2+. The ones in the middle are NOT Br^- or Rb^+. However, I do not know what the correct answer for those two is.
What elements is the smallest Ca Mg Be Sr?
Among the elements listed—calcium (Ca), magnesium (Mg), beryllium (Be), and strontium (Sr)—beryllium (Be) is the smallest in terms of atomic size. This is because beryllium is higher up in the periodic table, with fewer electron shells compared to the other elements, resulting in a smaller atomic radius.
Who won the Heisman Trophy in 1935?
1935 Jay Berwanger Chicago RB Sr.
Who won the Heisman Trophy in 1939?
1939 Nile Kinnick Iowa RB Sr.
When do you use Rb- Sr?
to date Volcanics and older than a few million years.
What is the atomic mass for calcium?
the atomic mass for calcium is 40.078 sr
Which is smallest Be Mg Sr Ca?
Among the elements Be (beryllium), Mg (magnesium), Sr (strontium), and Ca (calcium), beryllium (Be) is the smallest in terms of atomic size. This is because atomic size increases down a group in the periodic table due to the addition of electron shells. Since beryllium is at the top of Group 2, it has the least number of electron shells and therefore a smaller atomic radius compared to magnesium, calcium, and strontium.
