rrsavoy1981 rrsavoy1981

09-01-2016
Biology

contestada

what element has 81 protons in the nuclei of its atoms

Respuesta :

Sharmonea Sharmonea

09-01-2016

Thallium has 81 protons in the nuclei of its atoms

Answer Link

csiagent csiagent

09-01-2016

The atomic number reflects how many electrons there are, and there must be an equal charge. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the periodic table, ThalliumThallium is the answer to this

Answer Link

Otras preguntas

Read the following excerpt from The Works of John Playfair (1822). What glacial landform is being described? "For the moving of large masses of rock, the most

At Park Incorporated, employees are allowed one-hour lunches, but it has become common that most stroll back fifteen minutes late every day. The factor affectin

Digoxin is available in a concentration of 0.1 mg/ml. How many ml are required to administer a 75 mcg dose?

what is the answer!!!

The number of people estimated to vote in an election was 7,000. The actual number of people who voted was 5,600.

Charge A is sitting in an electric field you know the following information:________ the magnitude of charge A and the magnitude of both the field and the pote

You visit the Grand Canyon and drop a penny off the edge of a cliff. The distance the penny will fall is 16 feet the first second, 48 feet the next second, 80

If the writer wanted to deepen the reader's understanding of the first 3 sentences of the draft, which would be the best graphic to add?

A chemistry student needs of -ethyltoluene for an experiment. He has available of a w/w solution of -ethyltoluene in diethyl ether. Calculate the mass of soluti

A square matrix A is said to be idempotent iff A2 = A. (i) Show that if A is idempotent, then so is I − A. (ii) Show that if A is idempotent, then the matrix 2A