1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrews [41]
2 years ago
6

What do the numbers listed for an element on the periodic table represent

Chemistry
2 answers:
garik1379 [7]2 years ago
8 0
The number with a lower value is the number of protons and the number with a higher value is the mass
velikii [3]2 years ago
5 0
There are usually two values you'll come across on the periodic table.

1. the atomic number.
this represents the number of protons an element has. For example, hydrogen (H) has an atomic number of 1, which means that hydrogen has only one proton.

2. the mass number.
this usually represents the number of protons and neutrons an element has. For example, carbon (C) has a mass number of roughly 12, which means that the sum of its protons and neutrons add up to about 12. We know carbon has an atomic number of 6 (6 protons) so the number of neutrons must be 6 aswell.

(the mass numbers can differ depending on which periodic table you are given)

You might be interested in
PLS HELP ASAP I WILL GOVE BRAINLYEST
Radda [10]

Answer:

4 genetically different daughter cells

Explanation:

in image

5 0
2 years ago
If you dive out just past the continental slope and look at the living things on the ocean floor which zone are you exploring
mamaluj [8]
Lies just beyond the continental slope is the open ocean zone and it has three subzones namely the epipelagic(sunlit zone), mesopelagic(disphotic zone) and bathypelagic zones(aphotic zone). The oceanic zone covers 65% of the ocean's water and where different types of terrains can be found. From deep trenches, deep sea volcanoes and basins. A variety of sea creatures can also be found on each subzone.
3 0
3 years ago
What is the difference between an autosome and a sex chromosome
tatyana61 [14]
. The members of theautosome pairs are truly homologous; that is, each member of a pair contains a full complement of the same gene.The sex chromosomes, on the other hand, do not constitute a homologous pair.
8 0
3 years ago
Hydrazine, N2H4, may react with oxygen to form nitrogen gas and water.
Sindrei [870]

Answer:

The percent yield of the reaction is 35 %

Explanation:

In the reaction, 1 mol of hydrazine reacts with 1 mol O₂ to produce 1 mol of nitrogen and 2 moles of water.

Let's verify the moles that were used in the reaction.

2.05 g . 1mol/ 32 g = 0.0640 mol

In the 100% yield, 1 mol of hydrazine produce 1 mol of N₂ so If I used 0.0640 moles of reactant, I made 0.0640 moles of products.

Let's use the Ideal Gases Law equation to find out the real moles of nitrogen, I made (real yield).

1atm . 0.550L = n . 0.082 . 295K

(1atm . 0.550L) / 0.082 . 295K = n → 0.0225 moles

Percent yield of reaction = (Real yield / Theoretical yield) . 100

(0.0225 / 0.0640) . 100 = 35%

3 0
2 years ago
Read 2 more answers
QUESTION 2
Aleksandr [31]

Answer:

you can see the answer at the pic

4 0
3 years ago
Other questions:
  • What is the main point of the reading?
    10·2 answers
  • Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have
    13·1 answer
  • Name four types of pathogens that could cause infectious disease??
    14·1 answer
  • What are the 3 main lines of evidence for evolution?
    6·1 answer
  • The cell of your body need energy to carry out life function. Which of the following body responses is a sign that your cells ne
    7·1 answer
  • Which of the following solutions would be basic?
    8·1 answer
  • 3 ejemplos de sublimacion<br>​
    5·1 answer
  • Which one of the following is not a mixture?Air,mercury ,milk,cement​
    5·2 answers
  • Which of the following can be represented by a single chemical symbol?
    11·1 answer
  • If 42.389 g of Fe3Br2 is dissolved in enough water to give a total volume of 750 mL, what is the molarity of the solution
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!