Seudónimo Seudónimo

10-02-2015
Physics

contestada

The atomic number of an element is 19. Which is true of this element?

A.
Each atom has an atomic mass of 19.

B.
Each atom has 19 neutrons.

C.
Each atom has 19 protons.

D.
Each atom forms 19 ions.

Respuesta :

10-02-2015

C.
Each atom has 19 proton
the atomic number is the same as protons

Answer Link

Otras preguntas

why did other members of the delian league resent Athenian control

Consipirators in the Roman senate plotted the assasination of Julius Ceaser. a. Action verb b. Linking verb

what is halfway between 1/3 and 1/2

15.Identify the coordinates of point C after a translation with rule (x + 3, y 2). C' = (5, 7) C' = (6, 6) C' = (2, 0) C' = (0, 2)

A tabletop in the shape of a trapazoid have an area of 6550 square centimeters. its longer base measures 115 centimeters, and the shorter base is 85 centimeters

2x+y=5 and x+2y=4 Graph system of equation

What's the answer to 3s-4=1-3s

erratic : irregular :: A. ambient : cloudy B. telepathic : thoughtful C. deviant : abnormal D. transitive : past

Alex bought twice as many pears as apples. He bought 4 more pears than oranges. He bought 6 apples. How many oranges did Alex buy?

at what speed do electromagnetic waves travel?