英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth energy levels? 英语作业帮用户2017-10-10 举报...
How many protons are in uranium? Uranium is a silvery-white metallic chemical element in the periodic table, with atomic number 92. It is assigned the chemical symbol U. A uranium atom has92 protonsand 92 electrons, of which 6 are valence electrons. How many electrons does s 36 have? Mai...
How many neutrons are in carbon-14? How many neutrons does curium have? How many protons does einsteinium have? How many protons does californium have? How many protons, neutrons, and electrons does silicon have? How many protons, neutrons and electrons are in tungsten?
A neutral atom is one that has an equal number of protons and electrons. The positive charge of the protons and the negative charge of the electrons will cancel each other out. In the case of argon, it has 18 protons and thus will be neutral if it has 18 electrons in total betwe...
example,carbon atomsalways have six protons;hydrogen atomsalways have one; andoxygen atomsalways have eight. Different versions of the same element, called isotopes, can have a different number of neutrons. Elements can also gain or lose electrons to become charged, in which case they are called...
All elements are arranged in the periodic table by their atomic number -- the number of protons in their nucleus. Aluminum's lucky number is 13, so an aluminum atom has 13 protons. It also has 13 electrons. The elements located above and below aluminum on the periodic table form a ...
In cells, creatine combines first with a free phosphorus ion, and then - under the effect of the enzyme creatine kinase - this phosphorus ion combines with a molecule of ADP to form a new ATP molecule. Effectively, therefore, creatine enables ATP to be renewed, hence its ab...
impurity atoms have 5 valence electrons. ... Trivalent impurity atoms have 3 valence electrons. The various examples of trivalent impurities include Boron (B), Gallium (G), Indium(In), Aluminium(Al). Boron is a substance consisting of atoms which all have the same number of protons. ...
All matter is composed of atoms. Atoms, in turn, are composed of positively charged protons, negatively charged electrons, and neutral neutrons. The protons and neutrons, which are of approximately equal size, comprise the close-packed central "nucleus" of the atom, where almost all of the mas...
Related: Periodic table of elements quiz: How many elements can you name in 10 minutes? The columns of the table represent groups, or families, of elements. The elements in a group often look and behave similarly, because they have the same number of electrons in their outermost shell — ...