All categories

4 years ago

An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?

Biology

2 answers:

Pie4 years ago

8 0

Answer:

B. 18

Explanation:

An atom, which is the smallest indivisible particle of matter, further contains certain particles called SUB-ATOMIC PARTICLES namely: proton, neutron and electron. In a neutral/uncharged atom, the number of proton is equal to the number of electrons. The number of protons in an atom represent its ATOMIC NUMBER.

However, the sum of the proton number and neutron number gives the MASS NUMBER i.e. mass no. = proton no. + electron no.

Hence, according to this question which states that an atom has an atomic number of 17 and a mass number of 35. The neutron no. can be calculated as follows:

Neutron no. = mass no. - proton no.

Neutron no. = 35 - 17

Neutron no. = 18

djyliett [7]4 years ago

3 0

Answer:

B. 18

Explanation:

35 - 17 = 18

main answer

You might be interested in

IN YOUR OWN WORDS explain how cell differentiation creates the different cells in a multicellular organism.

Ipatiy [6.2K]

Answer:

A multicellular organism develops from a single cell (the zygote) into a ... tissue and organ development, and cell differentiation (gaining a final cell type identity). ... To function correctly, that body needs well-defined axes (such as head vs. tail). ... Mature cell types of the body, like neurons and liver cells, express different sets

Explanation:

3 0

3 years ago

Meiosis halves the chromosomes number, how is the 2N condition restored? A. mitosis B. it is not restored C. fertilization

cricket20 [7]

The answer is letter C. fertilization.
Meiosis reduces the chromosome number from diploid (2n) to haploid (n).
<span>During fertilization like that of human somatic cells which has 46 number of diploid chromosomes, a haploid sperm cell and a haploid egg cell combine to form a diploid zygote. Each parent contributes 23 number of chromosomes to the offspring which makes the total of 46 chromosomes. Since meiosis halves the chromosome number but the diploid condition is restored during fertilization</span>

5 0

3 years ago

I need help with my anatomy and phisiology h.w please

mylen [45]

Hey I can help! I'm taking the course right now. What is the question?

4 0

3 years ago

Which of these is important to gathering and interpreting scientific<br> information?

klio [65]

Answer:

Expiermenting and Researching

Explanation:

8 0

3 years ago

Which 2 phases of meiosis 1 provide the greatest chances for genetic diversity.

soldier1979 [14.2K]

Answer:

prophase I and metaphase I

Explanation:

6 0

3 years ago