oreodays0 oreodays0

16-12-2019
Chemistry

contestada

20. An atom has a mass of 50 and 20 protons. How many
neutrons does it have?
Answer:

Respuesta :

16-12-2019

Answer:

30

Explanation:

The mass number (A) is the sum of the numbers of protons and neutrons .

A = p + n

If p = 20,

n = A - p = 50 - 20 = 30

Answer Link

Otras preguntas

Two impedances zą 100V, 50Hz supply (10 j5) and ze (25-110) are connected in parallel to a Find (1) current in each branch (2 marks) (ii) line current (2 m

Q11. A body moves from A to F along the path shown below in 10 s. The distance and displacement will be E 10m (a) 0,40 m (b) 20 m, 40 m (c) 10 m, 40 m (d) 20 m.

speech about beauty of travelling

For 0 ≤ t ≤ 30 , the rate of change of the number of mosquitoes on Tropical Island at time t days is modeled by R(t) = [tex]3\sqrt{t}*cos(t/3)[/tex] mosquitoes

What is a Conversion Disorder? a. Symptoms arise unconsciously but deliberately b. The appearance of symptoms consciously but unintentionally c. Conscious and p

MDF is a manufactured wood panel product that can be used for cabinets, baseboard, casing and much else.MDF is the abbreviated for

Obtain the turbulent solution for the above values of parameter, and compare with the experimental results from El Telbany and Reynolds (1980) paper.

EXPLAIN TEACHERS RIGHTS AND RESPONSIBILTIES,LICENSURE,CONTRACTS,COLLECTIVE BARGAINING,TENURE,GRIEVANCE,DISMISSAL,REDUCTION TO FORCE,ACADEMIC FREEDOM,COPYRIGHT L

f(x)=sqrt x-3 graph the function it must have 4 points

4. Nakatulong ba ang kapaligiran sa pagpapalutang ng damdamin ng may-akda sa tula