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
Harrizon [31]
2 years ago
13

Each periods starts with a strong metal except the first period true or false​

Chemistry
1 answer:
aleksandr82 [10.1K]2 years ago
7 0

Answer: True

Explanation:

You might be interested in
Pre-Lab Study Questions / 9
jok3333 [9.3K]

Answer:

See detailed answer with explanation below.

Explanation:

Valence electrons are electrons found on the outermost shell of an atom. They are the electrons in an atom that participate in chemical combination. Recall that the outermost shell of an atom is also referred to as its valence shell. Let us consider an example; if we look at the atom, sodium-11, its electronic configuration is 2,8,1. The last one electron is the valence electron of sodium which is found in its outermost or valence shell.

Positive ions are formed when electrons are lost from the valence shell of an atom. For instance, if the outermost electron in sodium is lost, we now form the sodium ion Na^+ which is a positive ion. Positive ions possess less number of electrons compared to their corresponding atoms.

Negative ions are formed when one or more electrons is added to the valence shell of an atom. A negative ion possesses more electrons than its corresponding atom. For example, chlorine(Cl) contains 17 electrons but the chloride ion (Cl^-) contains 18 electrons.

In molecular compounds, a bond is formed when two electrons are shared between the bonding atoms. Each bonding atom may contribute one of the shared electrons (ordinary covalent bond) or one of the bonding atoms may provide the both shared electrons (coordinate covalent bond). The shared pair may be located at an equidistant position to the nucleus of both atoms. Similarly, the electron may be drawn closer to the nucleus of one atom than the other (polar covalent bond) depending on the electro negativity of the two bonding atoms.

The electrons are shared in order to complete the octet of each atom by so doing, the both bonding atoms now obey the octet rule. For example, two chlorine atoms may come together to form a covalent bond in which each chlorine atom has an octet of electrons on its outermost shell.

4 0
3 years ago
Explain what a chromosome is in your own words.
Alex787 [66]
It’s a structure of nucleic acids and protein that can be found in the nucleus; it carries genetic information through genes
7 0
3 years ago
Read 2 more answers
What is the relationship between concentration and rate of reaction?
grigory [225]
<h3><u>Answer;</u></h3>

Directly proportional

<h3><u>Explanation;</u></h3>
  • <em><u>Concentration is one of the factors that determine the rate of a reaction. Reaction rates increases with increase in the concentration of the reactants, which means they are directly proportional.</u></em>
  • An increase in the concentration of reactants produces more collisions and thus increasing the rate at which the reaction is taking place. Therefore, <u>Increasing the concentration of a reactant increases the frequency of collisions between reactants and will cause an increase in the rate of reaction.</u>
7 0
3 years ago
Zzzzzzzzzzzzzzzzzzzzzzz
Korolek [52]

Answer:

Wake up wake up wake up wake up

Explanation:

wake up wake up wake up wake up

6 0
2 years ago
Interphase Milosis: Prophese Mitosis: Melaphese Cytokinesis Anaphose<br>drag and drop​
Alinara [238K]
Wait, do you mind clarifying what you would like answered for the question?
5 0
3 years ago
Other questions:
  • A car driving east along the freeway at 60 m/s hits some traffic and after 7 seconds is
    9·1 answer
  • Which of the following is a solution?
    13·2 answers
  • Which are properties of an electromagnetic wave
    14·1 answer
  • How many moles of glucose are present
    5·1 answer
  • There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In
    5·1 answer
  • Collision of which two types of plates create the deepest earthquakes? Why do you think this is?
    10·1 answer
  • Which of the following pair of elements could not react to form an ionic compound
    11·1 answer
  • What do these two changes have in common? Shaking up salad dressing. Adding dish soap to water in a sink
    13·1 answer
  • Question 1<br><br> Of the following which displays a positive energetic process?
    6·1 answer
  • Calculate the mass of butane needed to produce 71.9 g of carbon dioxide.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!