Biology, 23.06.2019 00:00 Amazingdolannn

How many neutrons does element x have if its atomic number is 29 and its mass number is 86?

Answers: 2

Show answers

Answers

Answer from: HopeDied

The correct answer would be 57.

Atomic number is defined as the total number of protons in an atom. Thus, the number of protons in element X would be 29.

In addition, the mass number is defined as the sum of neutrons and protons present in an atom.

Therefore, the sum of the number of neutrons and protons in an element X would be 86.

Thus, the number of neutrons = Mass number- the number of protons

⇒86-29

⇒57

Hence, the number of neutrons would be equal to 57.

Answer from: chrischris1

Answer:

Element x will have 57 nutrons .

Atomic number: is the total number of protons.

Atomic mass: is the number of nutron + number of protons .

(57+29=86)

Calculation of nutrons: The mass number of an atom equals the number of protons plus the number of neutrons. Rearranging the equation, the number of neutrons equals the mass number minus the atomic number.

Number or nutrons = mass number - atomic number

86-29 = 57

Answer from: lflugo6oyn4sp

Answer:

Element x will have 57 nutrons .

Atomic number: is the total number of protons.

Atomic mass: is the number of nutron + number of protons .

(57+29=86)

Number or nutrons = mass number - atomic number

86-29 = 57

Answer from: Quest

the answer is c

explanation:

2points what is an index fossil? o a. a fossil that is found all over the world o b. a fossil found

Answer from: Quest

allowed for the prediction of the properties of missing elements.

Another question on Biology

Biology, 22.06.2019 02:00

The accompanying figure shows the percent of selected dna sequences that match between a chimpanzee and other primates. these data support the hypothesis that the figure shows the percentage of selected d n a sequences that match between the chimpanzee and other primates. the human has an almost 98 percent match, the gorilla has an almost 97 percent match, the orangutan has a 96 percent match, the gibbon has an almost 95 percent match, and the old world monkey has an almost 92 percent match. the accompanying figure shows the percent of selected dna sequences that match between a chimpanzee and other primates. these data support the hypothesis that the figure shows the percentage of selected d n a sequences that match between the chimpanzee and other primates. the human has an almost 98 percent match, the gorilla has an almost 97 percent match, the orangutan has a 96 percent match, the gibbon has an almost 95 percent match, and the old world monkey has an almost 92 percent match. chimpanzees and gibbons are the most closely related the chimpanzee's closest surviving relative is humans orangutans are the primates least closely related to chimpanzees old world monkeys and gibbons are the most closely related

Answers: 1

Answer

Biology, 22.06.2019 14:10

Amajor source of energy for your body comes from

Answers: 2

Answer

Biology, 22.06.2019 15:00

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow

Answers: 1

Answer

Biology, 22.06.2019 17:30

Aquantity of gas has a volume of 18 m3 and an absolute temperature of 225 k. when the temperature of the gas is raised to 380 k, what is the new volume of the gas? (assume that there’s no change in pressure.)