danielthetough danielthetough

03-05-2017
Chemistry

contestada

if an unknown element has a mass number of 14 and 7 neutrons how many protons are there

Respuesta :

JavierCollante JavierCollante

03-05-2017

there are 7 protons. The mass number is the addition of all protons and neutrons in a given element. To find the protons, simply subtract the mass number by the neutrons. 14-7 neutrons= 7 protons

Answer Link

Otras preguntas

Environmental designers design structures to match the environment. a. True b. False

In which sentence is the number written correctly? A. The thermostat outside the house read fifty-four degrees. B. We raked twenty two bags of leaves fro

Which discovery of gold and silver in 1859 in Nevada caused many people to arrive in the region? A) Pikes Peak B) Comstock Lode C) Forty-Niners Haul D) Sutter's

The Cenozoic was a time of _______. a. mountain building c. global warming b. continental breakup d. slow, global extinctions

(please help.) (I screenshot the question and choices )

Whats the meaning of altitude?

What is the unknown number? 7 yards 2 ft =___?___ft

Kennedy won the presidency on the basis of his program for: a.civil rights b.getting the United States out of Vietnam c.dealing with inflation d.a New Frontier

Which volcano erupted in the Pacific Northwest in 1980? A. Mount Rainier B. Mount Vesuvius C. Mount Pinatubo D. Mount Saint Helens

Interjections are used most commonly in