Physics
Physics, 19.08.2021 06:10, godchaux15395

Use the portion of the periodic table shown below to answer the questions. sodium
11
magnesium
12
Na
Mg
22.990
potassium
19
24.305
calcium
20
scandium
21
K
Ca Sc
39.098
rubidium
37
40.078
strontium
38
44.956
yttrium
39
Rb
SrY
85.468
87 62
88.906
Part 1: Name two elements that have the same properties as sodium (Na) (4 points)
Part 2: Determine the number of protons, electrons, and neutrons present in an atom of calcium (Ca). Explain how you determined your answer using
complete sentences. (6 points)

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 02:00, apalacios3503
Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.
Answers: 2
image
Physics, 22.06.2019 19:00, helpmegraduate40
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
Answers: 1
image
Physics, 22.06.2019 23:00, maddie6825
1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?
Answers: 1
image
Physics, 23.06.2019 01:00, djs1671
To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.
Answers: 1
Do you know the correct answer?
Use the portion of the periodic table shown below to answer the questions. sodium
11
m...

Questions in other subjects:

Konu
History, 21.08.2020 05:01
Konu
Mathematics, 21.08.2020 05:01