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
Alexandra [31]
2 years ago
13

Analyze: What pattern do you see? Make a rule: Based on your data, how are elements arranged into chemical families?

Chemistry
2 answers:
julia-pushkina [17]2 years ago
7 0

Answer: in order of increasing atomic number.

Explanation: Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

Ket [755]2 years ago
6 0

Answer:

What pattern do you see?

Chemical families have the same number of valence electrons.

Make a rule: Based on your data, how are elements arranged into chemical families?

They are arranged vertically depending on how many valence electrons they have, if they have the same amount, they will have the same chemical family in each column.

You might be interested in
Under which conditions would the solubility of a gas be greatest? high pressure and high temperature high pressure and low tempe
kiruha [24]

Option B: high pressure and low temperature

A gas is more soluble under high pressure and low temperature conditions.

On increasing temperature of a gas, its kinetic energy increases. The increase in kinetic energy increases the motion of particles of gas this causes most of the gaseous particles to escape from the gas phase. Thus, less particles are available to dissolve in liquid and solubility decreases.

The effect of pressure on solubility of gas can be explained with the help of Henry's law. According to the law, at constant temperature, solubility of gas and partial pressure of gas are related to each other as follows:

p=k_{h}c

Here, p is the partial pressure of the gas, k_{h} is Henry's law constant, and

c is the concentrate of the gas.

According to above relation, concentration of gas decreases on decreasing partial pressure. Thus, on increasing pressure,  concentration of gas increases this increases the solubility of gas in liquid.

Therefore, solubility of gas is greatest at high pressure and low temperature.


4 0
3 years ago
Read 2 more answers
How might cancer of the testes affect a man's ability to make sperm
evablogger [386]
<span>It might affect that by making the testes grow uncontrollably so it can't make

</span>
3 0
2 years ago
Elements occur in a number of isotopic forms. In this problem, you will learn about the notation used to distinguish different i
alina1380 [7]

Answer:

  • <em>Number of protons, Z = 14</em>
  • <em>Number of neutrons, N = 14</em>

Explanation:

<u>1) About isotopes:</u>

<em>Isotopes</em> are different kind of atoms of the same element. Hence, they have the atomic number (Z), which is the number of <em>protons</em>, the same number of electrons (talking about to neutral atoms, not ions), and different <em>number of neutrons N).</em>

This is, it is the number of neutrons what distinguish different isotopes of an element.

<u>2) About the notation used to distinguish different isotopes:</u>

A superscript and a subscript, both to the left of the chemical symbol of the element, are used to <em>distinguish different isotopes</em>:

       A ←------------- This superscript tells the mass number of the isotope

           X ←--------- This is the chemical symbol of the element

      Z ←-------------- This subscript is the atomic number of isotope

In our case, the notiation for the isotope of silicon is:  ²⁸₁₄ Si

So, we have:

  • 28 is the mass number (A)
  • 14 is the atomic number (Z)
  • Si is the chemical symbol.

Now, you can answer the questions of the <em>part A</em>:

  • Number of protons: Z = 14
  • Number of neutrons N:

       mass number = number of protons + number of neutrons

                   A         =                 Z              +                N

⇒ N = A - Z = 28 - 14 = 14

In <u>conclusion</u>:

  • Number of protons, Z = 14
  • Number of neutrons, N = 14
5 0
3 years ago
The compound potassium nitrate is a strong electrolyte. write the reaction when solid potassium nitrate is put into water:
Alenkinab [10]
<span>There is no chemical reaction between potassium nitrate and water. Potassium nitrate dissolves in water, which is a physical change.</span>
7 0
3 years ago
How does the troposphere protect the earth?
Usimov [2.4K]
The troposphere protect the molecules because there are higher layers on top. This makes life possible on Earth.
4 0
3 years ago
Other questions:
  • What is a chemical change?
    10·1 answer
  • Describe how a mole ratio is correctly expressed when it is used to solve a stoichiometry problem
    7·1 answer
  • The mass of a 50-mL volumetric flask is 40.638 g. After adding 15.0 mL of 95% ethanol and adding enough water to complete the vo
    14·1 answer
  • Write the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by each:
    13·1 answer
  • What tool do I need to use to find the molar mass?
    9·1 answer
  • Which experiment led to the idea that atoms contain a nucleus?
    13·1 answer
  • Paano mag ka jowa? any suggestions?​
    5·2 answers
  • Which of the gases below is found at high levels near the surface of the ocean due to plant photosynthesis?
    10·1 answer
  • How many divisions are used to classify living organisms?<br> a) 5<br> b) 6<br> c) 8<br> d) 7
    12·1 answer
  • Be sure to answer all parts. what are the concentrations of hso4−, so42−, and h in a 0. 31 m khso4 solution? (hint: h2so4 is a s
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!