jerr2
jerr2
18-12-2016
Chemistry
contestada
how is the mass number calculated for an element
Respuesta :
SuhaaZaidi
SuhaaZaidi
18-12-2016
Find the number of protons and neutrons of that element and add them together. You might need periodic table. Hope it helps.
Answer Link
Аноним
Аноним
18-12-2016
Mass number=Atomic number+ number of neutrons. Hope it helps
Answer Link
VER TODAS LAS RESPUESTAS ( 11+ )
Otras preguntas
I begin the reaction with 0.45 g of beryllium. If my actual yield of beryllium chloride (mm = 79.91 g/mol) was 3.5 grams, what was my percent yield? Please sho
5. If you were forming a company, which department would you create first, and why? (2-4 sentences. 3.0 points)
Which of the following points lies on the graph of this equation? y = 1/4x - 1 A. (0, -1) B. (1, 2) C. (2, 1) D. (4, 1)
Describe the policies created be the government of Rwanda during the 1960s. (Site 1)
1. List 4 modern dance companies performing today and include their home location and approximate number of dancers please answer asap!!!!
Help me plss I need to pass this
A cone with radius 7 centimeters and height 10 centimeters. What is the volume of the cone? Cone V = one-third B h StartFraction 70 Over 3 EndFraction pi centim
2. Read this passage from The Odyssey in which the cave of the Cyclops is described: So we explored his den, gazing wide-eyed at it all, the large flat racks lo
(1) Su fría Angela porque (2) día y noche. (3) que (4) un resfriado, pero se (5) bastante saludable. Se (6) de la biblioteca después de poco tiempo porque les (
Water is a great solvent. For example, it causes ionic compounds like sodium chloride (table salt) to dissociate. One of these reasons that water does is becaus
