kaseyboyer777 kaseyboyer777

26-02-2018
Chemistry

contestada

If a neutral atom of boron (B) contains 5 protons, 5 electrons and 6 neutrons, what is the mass number of this atom? (2 points)
21
11
10
5

Respuesta :

andrewwojtas andrewwojtas

26-02-2018

i believe the answer is 11, its been awhile since i was in science

Answer Link

r3ckl3ssryd3r r3ckl3ssryd3r

02-03-2018

The atomic mass it 11. 5 Proton and 6 Neutrons is 11 mass. Protons and Neutrons both weigh 1U.

Answer Link

Otras preguntas

To his surprise, Daniel found that an egg did not break when he accidentally dropped it from a height of 0.35 m onto his floor, covered with 3.0-cm-thick carpet

Which of the following geographical conditions led European nations to colonize Africa? A. Africa's dry climate and deserts. B. The dense soil in Africa's

One of the major goals of all interest groups is to do which of the following? (1) prevent voter fraud by ensuring that citizens of voting age are registered (2

You and a friend play a game where you each toss a balanced coin. If the upper faces on the coins are both tails, you win $1; if the faces are both heads, you w

How do you write an equation of a line given 2 points? Write the equation for the line containing points (3,8) and (9,2). Convert the equation to slope intercep

The Ring of Fire is a string of volcanic sites in the Pacific Ocean that stretches between the Americas, Asia, and Australia. What is the most likely cause of t

How many moles of a gas at 100°C does it take to fill a 0.50 L flask to a pressure of 1.25 atm? 0.020 moles 0.053 moles 0.086 moles 0.204 moles

X-5y=-2 and x=4y-1 substitution

2 - X<-7 (x > 9)solve and graph

17°F below 0 Integer