3 years ago

Which element has 19 electrons surrounding the nuclei of its atoms?

Physics

1 answer:

Tems11 [23]3 years ago

4 0

I think it's potassium, but i'm not sure

You might be interested in

astone is thrown upwards with an initial velocity of 25m/s atan angle of 30 to the ground.what is the work out the stones horiza

vovikov84 [41]

Answer:

Range is 62.5 metres

Explanation:

Time of flight

$t = \frac{2u \sin( \theta) }{g}$

for range, acceleration is zero

from second newton's equation:

$S = ut + \frac{1}{2} {at}^{2}$

but a = 0:

let range be x:

$x = ut \\ x = \frac{2 {u}^{2} \sin( \theta) }{g} \\ \\ x = \frac{ \{2 \times 25 {}^{2} \sin(30 \degree) \}}{10} \\ \\ x = 62.5 \: metres$

[ taken g to be 10 m/s² ]

4 0

3 years ago

One positive effect of recycling aluminum cans

GarryVolchara [31]

Your answer should be “1.”

MARK ME BRAINLIEST PLEASE!!!!!!!

3 0

4 years ago

. A chemistry student’s height is measured at 68.5 inches. How tall is the student in cm?

RideAnS [48]

Answer:

173.99 centimeters

Explanation:

multiply the length value by 2.54

8 0

3 years ago

Read 2 more answers

Computers have become a familiar ___ of communication, connecting people around the world.

devlian [24]

They're a medium (c) of communication

A. mediation is what you so when you want to bring the sides of conflict together

b. is a person who is advocating something

d. is a presentation of some opinion or facts.

5 0

3 years ago

Does the universe have centre?

dalvyx [7]

No it does not ...hope this helps

3 0

3 years ago

Read 2 more answers