0
Rhodium (symbol Rh, at. no. 45, at. wt. 103)
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Which family of elements is the most electronegative?
Basically, the more electrons that are present in an atom, the more elctron shells it will have. Look at a periodic table and you'll see Astatine has a proton number of 85 (85 protons), as the number of electrons and protons is equal, we can therefore deduce that it has 85 electrons and is the largest halogen atom. Therefore astatine MUST have the most electron shells as it has more electrons to fill them. Basically, the more electrons that are present in an atom, the more elctron shells it will have. Look at a periodic table and you'll see Astatine has a proton number of 85 (85 protons), as the number of electrons and protons is equal, we can therefore deduce that it has 85 electrons and is the largest halogen atom. Therefore astatine MUST have the most electron shells as it has more electrons to fill them.
What is the first element of the actinides?
The first element in the actinide series is actinium , a chemical element in the periodic table that has the symbol Ac and atomic number 89.The actinide (or actinoid) series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table , with atomic numbers 89-103.The actinides get their name from the first element in the series , actinium.
Is there more protons in and ion than electrons?
Short Answer: The human body (and most other objects) is (are) normally neutral and that means the number of protons is very nearly equal to the number of protons. There will be a few more electron or a few less at any given time based on interactions of the body (or object) with its enviroment, but unless there is a specific process that adds or subtracts a substantial number of electron, the body (the object) will be almost neutral. While it is true that the body is a complex system of electrolytes with positive and negative ions, they balance and the body is still nearly neutral. Another Answer: In all neutral atoms, the number of protons and electrons are equal. When atoms form compounds, they transfer electrons to and from one another, but the total amount of electrons remains the same. If you _did_ have many more protons or electrons, your body would become electrically charged (negatively for an excess of electrons, and positively for an excess of protons). This is indeed what happens when you run your feet through a rug and get a static charge, making your hair stand up and causing you to spark on a doorknob. But normally, the amount of protons and electrons are the same.
List earth names for the 30 alien elements in order of atomic number?
technetium -- Tc -- element 43prometheum -- Pm -- element 61{polonium -- Po -- element 84}astatine -- At -- element 85{radon -- Rn -- element 86}francium -- Fr -- element 87{radium -- Ra -- element 88}{actinium --Ac -- element 89}{protactinium -- Pa -- element 91}neptunium -- Np -- element 93plutonium -- Pu -- element 94americium -- Am -- element 95curium -- Cm -- element 96berkelium -- Bk -- element 97californium -- Cf -- element 98einsteinium -- Es -- element 99fermium -- Fm -- element 100mendelevium -- Mv -- element 101nobelium -- No -- element 102lawrencium -- Lr -- element 103 (originally the symbol for this element was Lw)rutherfordium -- Rf -- element 104dubnium -- Db -- element 105seaborgium -- Sg -- element 106bohrium -- Bh -- element 107hassium -- Hs -- element 108meitnerium -- Mt -- element 109darmstadtium -- Ds -- element 110roentgenium -- Rg -- element 111copernicium -- Cn -- element 112flerovium -- Fl -- element 114livermorium -- Lv -- element 116These are the "English names" rather than the "earth names".The elements in braces {} do not necessarily count as "alien" because they are present on Earth in small quantities.There have been recent claims for the preparation of elements 113, 117, and 118,but so far they have not been endorsed or named by IUPAC.
Which number represents the greatest mass 9000mg 400g 0.04kg or 0.009kg?
The prefix "milli", abbreviated as "m" in "mg", means in number terms 10-3, and the prefix "kilo" abbreviated as "k" in "kg", means in number terms 103. Therefore, 9000 mg is the same as 9 grams, 0.04 kg is the same as 40 grams, and 0.009 kg is the same as 9 grams. Clearly, with all the units now the same, the largest mass among those listed is 400g.
How may protons neutrons and electrons In lawrencium?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element; the atomic number of Lr is 103. Lawrencium has many isotopes and each isotope has a different number of neutrons.
If an element has an atomic number of 45 and an atomic mass of 92 the number of protons it has is?
The atomic number always gives the number of protons or electrons. The neutrons are obtained by subtracting the number of protons from the atomic mass. In this example, since 45 is the atomic number, this element has 45 protons. since the mass is 92, the number of neutrons is 92-45= 47. However, this is not really true because the element with 45 as atomic number is rhodium and it has a mass of 103 u and hence a total of 58 neutrons.
What is the number of protons neutrons and electrons in rhodium?
Naturally, it can only have 58 neutrons. Synthetic isotopes however can have between 44 and 77 neutrons to this date.
How do you know the number of protons electrons and neutrons in the 1st 20 elements?
Look at the periodic table.The bottom number on an element is the number of protons. The number of electrons will be the same. Subtract the bottom number from the top number to get the number of neutrons. e.g: 103 Rh 45 Protons= 45 Electrons= 45 Neutrons= 58 (103-45)
How many electrons does the atom Lr have?
Lawrencium's atomic number is 103. That means it has 103 protons. In order to be electrically neutral then, it must also have 103 electrons.
How many protons electrons and neutrons does lawrencium have?
Lawrencium has 103 electrons and protons. The number of neutrons is different for each of the 12 isotopes of Lr.
What element has 102 neutrons and 70 electrons?
Perhaps Ytterbium, which has 103 neutrons and 70 electrons.
What is the atomic number of Lawrencium?
Lawrencium, with the chemical symbol Lr (or Lw in early versions of the 103-element periodic table) is the chemical element with the atomic number 103.
What element has the element symbol Lr?
The element that is represented by the symbol Lr is called lawrencium. It has an atomic number of 103, and an atomic mass of 262.
Which isotope contains the greatest number of protons?
Atomic number is a measure of protons and electrons. extra or less Neutrons are what make an isotope and are not included in atomic number. therefore element with the highest atomic number will also be the isotope with the highest atomic number. on my periodic table it is lawrencium at 103. (note although this might have extra neutrons making it an isotope, it will always have the same atomic number - atomic number isn't what determines an isotope it is mass number) if you meant mass number (which is what determines an isotope), you can subtract the atomic number from the mass number to find out how many neutrons there are and determine whether it is an isotope or not
What element has the word wren in the name?
It's lawrencium. Its number 103
Which element has 103 protons?
Lawrencium
