How many atoms of hydrogen are contained in 23 molecules of CH3ch2COOH

Some patterns of electron configuration are listed below. In each case, [G] stands for a noble-gas core and n, m, or o stand for

Nonamiya [84]

Answer:

G]ns^2np^5 group 17 (p-block)

G]ns^2np^2 group 14 (p-block)

G]ns^2mf^14 group 16 (f-block)

Explanation:

The outermost electronic configuration of an element shows the group to which it belongs in the periodic table as shown above in the answer. In addition, to that, we can be able to know from its electronic configuration, whether the element is a metal or not.

For instance;

G]ns^2mf^14 is a rare earth metal, G]ns^2np^2 group 14 is a metalloid while G]ns^2np^5 group 17 is a nonmetal.

4 0

3 years ago

What does scientist use to deign their experiments

joja [24]

Answer:

a chart

Explanation:

a chart a chart is the answer

8 0

3 years ago

Please help me, im studying for finals and i need an answer to this question! Will mark brainliest for the answers that are the

alex41 [277]

Answer:

group of people assembled for religious worship.

a second definition:

a gathering or collection of people, animals, or things.

other words that mean the same thing as cogeneration:

assembly gathering assemblage convocation crowd flock group mass multitude!

I just need one more brainlest so if this helped! <3

5 0

3 years ago

Acetone (C3H6O) is a liquid that is used to dissolve substances that do not mix with water. The boiling point of acetone is 56°C

serg [7]

Answer : Acetone start to condense below 56 °C

Explanation :

Boiling point : It is defined as the temperature at which vapor pressure of the liquid is equal to the atmospheric pressure of the liquid.

That means, the temperature at which the liquid changes into gas.

Condensation point : It is defined as the temperature at which the phase changes from a gaseous to liquid.

As per question, the boiling point of acetone is 56 °C. As, the gas is at 100 °C then the condensation of acetone will take place at 56 °C but below this temperature acetone exists in a liquid phase.

Hence, below 56 °C acetone start to condense.

8 0

3 years ago

Urgent!!! Need answers!!!!??

vampirchik [111]

Answer:

Explanation:

What is the identity of the atom shown?

Answer:

Chlorine

Explanation:

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.

In given picture it can be seen that there are 17 protons and 18 neutrons are present with in nucleus it means atomic mass is 35 amu and 17 electrons are present out side the nucleus it means its atomic number of 17.

The atomic number of chlorine is 17 and mass number is 35.5 amu thus the given atom is of chlorine.

Elements in the same group/family of the periodic table are similar in what way?

Answer:

D. They have the same number of valence electrons.

Explanation:

The elements in the same group have similar properties due to same number of valance electrons. For example

Consider the group two. It is alkaline earth metals's group. It consist of six members Beryllium, Magnesium, Calcium, Strontium, Barium and radium. All these have two valance electrons.

Electronic configuration of Beryllium:

Be = [He] 2s²

Electronic configuration of Magnesium:

Mg = [ Ne] 3s²

Electronic configuration of Calcium:

Ca = [Ar] 4s²

Electronic configuration of Strontium:

Sr = [Kr] 5s²

Electronic configuration of Barium:

Ba = [ Xe] 6s²

Electronic configuration of radium:

Ra = [Rn] 7s²

7 0

3 years ago