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
zaharov [31]
3 years ago
11

BRAINLIEST! Please help me answer the following questions:

Chemistry
1 answer:
Vlada [557]3 years ago
6 0

Explanation:

1) from the periodic table for example if u looking for K it is from the group 1A so the valancey = +1 that is mean it loses one electron to reach a stable state. and this applied for the 1A , 2A, 3A groups.

if u looking for N it is from group 5A so its valency is -3

so it gain 3 electrons to reach a stable state to complete its orbital to 8 electrons. this applied to 5A, 6A,7A

for the transition metals and simimetals other rules.

2) neutral if the element does not hold any charge like

H2, O2, N2, Fe, Au, Cu ...

isotope : if the 2 elements have same symbol and atomic number but they differ in the mass number because the have different numbers of neutrons.

if the element is charged then it is considered as an ion ex: Fe2+ then it is iron cation ( +ion)

F- then it is fluoride anion (-ion)

if u have any doubt just writ a comment ( ;

You might be interested in
What is "Scarcity" <br><img src="https://tex.z-dn.net/?f=." id="TexFormula1" title="." alt="." align="absmiddle" class="latex-fo
Lana71 [14]

Explanation:

I don't know sorry ok I have some work so I m sorry

4 0
2 years ago
Read 2 more answers
All atoms of a given element are identical was proven wrong because of the existence or
vagabundo [1.1K]

Answer:

they are all similar

Explanation:

6 0
3 years ago
The molecular clock theory uses genetic traits to estimate how long ago various groups of organisms diverged evolutionary from o
Nataliya [291]
<span>Many scientific investigations have provided evidence to support this as the best explanation of the data</span>
8 0
3 years ago
Read 2 more answers
Which of the following statements does not describe the structure of an atom?  An atom has a small, dense center called the nucl
Gala2k [10]
<span>Inside the nucleus of an atom are protons and electrons. </span>
5 0
3 years ago
Read 2 more answers
PLEASE ANSWER ASAP FOR 50 POINTS (scroll down to see the pictures for the questions)
sladkih [1.3K]
Absorption occurs when photons from incident light hit atoms and molecules and cause them to vibrate. The more an object's molecules move and vibrate, the hotter it becomes. This heat is then emitted from the object as thermal energy.
8 0
2 years ago
Read 2 more answers
Other questions:
  • An object was measured by a worker as 14.6 cm long, however, the manufacturer specifications list the length of the object at 14
    9·1 answer
  • Properties that make titanium useful for tennis rackets and wheelchairs
    7·2 answers
  • Photosynthesis uses 660-nm light to convert co2 and h2o into glucose and o2. calculate the frequency of this light.
    15·1 answer
  • What is the limiting reactant?
    9·1 answer
  • State the ideal gas law equations and tell what each term means
    12·2 answers
  • The ions formed by nonmetals in group 6A and 7A...
    6·1 answer
  • How are sex chromosomes different from other chromosomes​
    11·1 answer
  • I) If 8.87g of As2O3 is used in the reaction and 5.33 g of As is produced, what is the percent
    14·1 answer
  • I need help! Please give me an answer
    7·2 answers
  • Solid potassium chloride is obtained by the reaction of solid potassium and chlorine gas.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!