Answers
Answer:
particle E and R
Explanation:
isotopes = atoms of same element with same proton number but different number of neutron
nucleon number = proton number + number of neutrons
particle E
- nucleon number = 16
- proton number = electron = 8
- number of neutrons = 16-8 = 8 ✅
particle Q
- nucleon number = 18
- proton number = electron = 9
- number of neutrons = 18-9 = 9
particles R^2-
- nucleon number = 18
- proton number = 10-2 = 8
- number of neutrons = 18-10 = 8 ✅
particle T^+
- nucleon number = 22
- proton number = 10+1 = 11
- number of neutrons = 22-11 = 10
Related Questions
what were J.J thomson's ideas called
Answers
Answer: the plum pudding model
Explanation:
for A P E X i just took the test
5. Thomson's experiments with cathode rays led to the discovery of the:
electron
Neutron
Answers
PLEASE HELP ASAP
Show all work and include units when necessary for full credit!
An isotope of element X has a mass of 12.32 amu and a relative abundance of 19.5%; a second isotope has a mass of 13.08 amu and a relative abundance of 26.23%; the third isotope in the sample has a mass of 11.99 amu and a relative abundance of 54.27%. Calculate the atomic mass of element X
Answers
Answer:
12.34 amu
Explanation:
Let the 1st isotope be A
Let the 2nd isotope be B
Let the 3rd isotope be C
From the question given above, the following data were obtained:
1st Isotope (A):
Mass of A = 12.32 amu
Abundance (A%) = 19.5%
2nd isotope (B):
Mass of B = 13.08 amu
Abundance (B%) = 26.23%
3rd isotope (C):
Mass of C = 11.99 amu
Abundance (C%) = 54.27%
Atomic mass of X =?
The atomic mass of the element X can be obtained as follow:
Atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]
= [(12.32 × 19.5)/100] + [(13.08 × 26.23)/100] + [(11.99 × 54.27)/100]
= 2.402 + 3.431 + 6.507
= 12.34 amu
Thus, the atomic mass of the element X is 12.34 amu
HELPPPPPP MEEEE‼️‼️‼️Use the equations from
Answers
2.-900
3.20
4.8
Hope this helps
What will cause an object to move?
Answers
Deoxyribonucleic acid is also referred to as
Answers
The answer is nucleic acid
Answer:
(DNA) is a molecule that encodes an organism's genetic blueprint
Explanation:
Deoxyribo Is the D
nucleic Is the N
acid Is the A
{DNA}
Hope that helps :)
How many atoms are in 1 mole of cobalt atoms?
Answers
Answer:
Explanation:
Explanation: NA,Avogadro's number specifies 6.0221×1023 individual particles. It is simply another collective number like a dozen, or a score, or a gross. NA has the property that 6.0221×1023 individual cobalt atoms has a mass of 58.93⋅g
Answer:
6.0221×1023
Explanation:
Please Help! I Really Really Need It!
Answers
Answer:
The picteure isnt lodeing
Explanation:
mark brainly
How do you know when a saturated solution has been produced?
Answers
What do the cells do with the things they absorb
Answers
Answer:
Use them as nutrients probably
Which one of the following is an example of a difficulty caused by thermal
expansion?
O A. The siding on a house buckles on a hot day.
OB. Watery iced tea
OC. Smog in the air during summer heat
OD. lce cream not getting hard
Answers
Answer: A
Explanation:just passed it
Answer:
A. The siding on a house buckles on a hot day
Explanation:
The key word in this question is EXPANSION. Without even knowing the siding expands causing it to buckle when it's hot, you can use process of elimination. It can't be answer B because watered down iced tea would most likely be as a result of the ice melting which is the opposite of expanding. It can't be C because air is not solidified and therefore can't expand. Lastly, D cannot be it because ice cream expands when cold, causing it to become hard. If it's not hardening then it's not expanding. This is also the correct answer on a p e.x
Oxygen is most chemically similar to
Anitrogen
Bsulfur
Cfluorine
Answers
Answer:
Nitrogen is the answer
Which of the following is an example of a decomposition reaction?
Answers
________ is defined as average kinetic energy.
A. temperature
B. volume
C. heat
D. pressure
Answers
Is this statement true or false?
Inner planets have many natural satellites.
true false
Answers
Answer:
true
Explanation:
we have many sattelites that are seen by many astounouts in space by telescope but more than half space is not discoverd
When the Bunsen burners quit working at cooper JHS, students had to use candles to heat up their lab samples. At the beginning of class, the candle was 12 cm tall. By the end of class, the candles were 8 cm tall. Did a chemical reaction take place, yes or no? what evidence or lack of evidence do you have to support your answer?
Answers
Answer:
Often a chemist needs to heat materials. The Bunsen Burner is one of the most efficient ways of doing this.
Explanation:
PLEASE HELP
Vehicles use diesel fuels. Which one of these energy transformations takes place when the fuel is used by the engine
Answers
Answer:
A
Explanation:
I would say a because we all know that kinetic energy is energy in motion and fuel is an example of chemical energy. So it must be from chemical to kinetic energy.
boron phosphite
Formula please help fast please please help me please please help
Answers
Answer: The formula for boron phosphite is BP
Explanation:
The answer would be BP
Hope this helped!
Is the following equation balanced correctly?
NaCl + H2 Na + 2HCl
Answers
They are equaled
NaCl + H2 Na + 2H Cl ✅
Good job
Many of the lunar craters are due to volcanic eruptions true or false
Answers
Answer:
false
Explanation:
Craters on the Moon are caused by asteroids and meteorites colliding with the lunar surface. The Moon's surface is covered with thousands of craters. ... It also has very little geologic activity (like volcanoes) or weathering (from wind or rain) so craters remain intact from billions of years.
Which statement is false
Answers
Answer:
B
Explanation:
Answer:
B - O has a higher ionization engery then P
Explanation:
A rectangular box has the following dimensions on the inside: 5 cm x 5 cm x 10 cm. What volume can the box hold, in milliliters?
- 20 mL
- 259 mL
- 25 mL
- 50 mL
Answers
Answer:
The volume in milliliters is 250mL
Explanation:
The volume of a rectangle is obtained using the equation:
Volume = Length * Width * Height
In the problem, we can take length as 5cm, width as 5cm and height as 10cm. Thus, volume of the rectangular box is:
Volume = 5cm * 5cm * 10cm
Volume = 250cm³
1mL = 1cm³.
That means the volume in milliliters is 250mL
Which of the following is an example of a physical change in digestion?
water being absorbed in the large intestines
enzymes break down food nutrients
nutrients are broken down into different molecules
saliva breaking down carbohydrates
Answers
Answer:
The answer would be C
Explanation:
I got it right on E D G E N U I T Y
2021
In plants, what does chlorophyll absorb so photosynthesis can take place?
OA.
water
OB.
gases
OC. energy
OD.
nutrients
Answers
Answer:
OC energy
Explanation:
which of the following statements describes how the ionic bond is formed
a.) nonmetals share electrons with other metals.
b.) metals take electrons from nonmetals.
c.) metals allows their electrons to freely move around other metals.
d.) nonmetals take electrons from metals.
Answers
The statement that best describes how the ionic bond is formed is as follows:
Non-metals take electrons from metals.Thus, the correct option for this question is D.
What are Ionic bonds?Ionic bonds may be defined as the type of chemical bond that significantly involves the electrostatic force of attraction between ions of opposite charges, or between two atoms with different electronegativities.
When ionic bonds are formed between atoms or ions, the metal loses electrons and acquires a positive charge over them. They are known as cations. While the non-metals accept those electrons and acquire a negative charge on them. They are known as anions.
Therefore, non-metals taking electrons from metals is one of the statements that best describes the formation of ionic bonds. Thus, the correct option for this question is D.
To learn more about Ionic bonds, refer to the link:
https://brainly.com/question/7655594
#SPJ6
a 120 volt power supply connected to a 10Ω resistor will produce amps of current
Answers
E=emf/voltage
I = current
R= resistance
I=E/R
I=120/10
I= 12 amps
Convert 2.5x10^6mm to km
Answers
Answer:
2.5 kilometers
Explanation:
Explain why a flash of green light made flubber so energetic
Answers
Answer:
The flash of green light may give off some type of energy that only emits from green light which probably energizes the Flubber
Explanation:
A flubber is a rubber like polymer that absorbs and amplifies energy. A flubber absorbs energy from a light source and electrons present in it are excited in order to emit light of higher wavelength. The green light absorbed by the flubber to emit longer wavelength of light emitting more energy.
identify this compound: KClO4
Answers
Answer: Potassium perchlorate
Explanation:
Which type of mass movement is the most destructive
Answers
Answer:
Landslide
Explanation:
its most destructive because its various rocks falling and it goes blammow
Answer: the answer is C
Landslide
Explanation: