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
Galina-37 [17]
3 years ago
6

How does the periodic table used today classify elements?

Chemistry
2 answers:
Svetlanka [38]3 years ago
7 0
The periodic table of today organizes the elements as per their atomic numbers..and not atomic masses.
S_A_V [24]3 years ago
3 0

Answer:

The Periodic Table organizes chemical elements according to the number of protons that each has in its atomic nucleus

You might be interested in
How many atoms of oxygen in the chemical formula 2Ca(ClO2)2?
Fofino [41]

Answer:

Calcium Nitrate is made up of three different elements and contains a total of nine atoms. This compound's formula is Ca(NO3)2. There is one calcium atom, two nitrogen atoms, and there are six oxygen atoms in calcium nitrate

4 0
2 years ago
Which of the following is an example of point-source pollution? A. Salt from roads B. Water from a sewage treatment plant C. Fer
ivanzaharov [21]

Answer:

Acid from abandoned mines- D.

7 0
3 years ago
Explain why, when the imidazole ring of histidine is protonated, the double-bonded nitrogen is the nitrogen that accepts the pro
eduard
The important thing to note is the reason why electron react is due to the instability of the electrons. All elements wants to aim the electron configuration of the noble gases. This is the most stable form in which each of the orbitals are sufficiently filled. When it comes to bonding, the order of reactivity is: alkynes > alkenes > alkanes. Alkynes are compounds with triple bonds, alkenes with double bonds and alkanes with single bonds. The single bonds are called saturated hydrocarbons. This is because they have reached stability, so it is quite difficult to react this with reducing or oxidizing agents. Alkynes and alkenes are unsaturated hydrocarbons. They readily react with reducing and oxidizing agents so as to become saturated, as well. The underlying principle for this is that single bonds contain sigma bonds which is the head-on overlapping of electrons. These is the strongest type of covalent bond. Double and triple bonds contain pi bonds which is the side overlapping of electrons orbitals. Hence, these electrons would be easily separated making it more reactive especially during protonation.
4 0
3 years ago
The reaction A → products is first order. If the initial concentration of A is 0.646 M and, after 72.8 seconds have elapsed, the
mario62 [17]

Answer: 0.00867 moldm-3

Explanation:

Since the reaction is 1st order,

Rate of reaction=∆[A]÷t

0.646-0.0146/72.8= 0.00867

Remember that in a first order reaction, the rate of reaction depends on change in the concentration of only one of the reaction species, A in the problem above.

5 0
3 years ago
Elements whose properties are between those of metals and solid nonmetals are called:
Tom [10]

Answer:

mettaliods

Explanation:

It has the both property of metal and non metal so it is called mettaliod.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which element is malleable and ductile? <br>○Flourine O Gallium <br>O Silicon O Phosphorous​
    9·1 answer
  • How many significant figures does 6559.060 have
    15·1 answer
  • 225 J of heat energy were absorbed when a 35.0 g sample of iron was warmed. What was the change in temperature?
    7·1 answer
  • Propose a mechanism for the following reaction.
    7·1 answer
  • Layered metamorphic rocks
    15·2 answers
  • The atomic number of nitrogen is 7. How many protons,neutrons ,and electrons make up an atom of nitrogen -15
    8·1 answer
  • Balance the reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1.
    13·2 answers
  • Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Show all
    5·1 answer
  • When vinegar is added to some marble chips ( calcium carbonate) bubbles of gas are observed, what gas is produced and how can it
    11·1 answer
  • Which reason best explains why plasmas are good conductors of electricity? They have mobile charged particles. They are at extre
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!