What is the correct lewis dot structure for
24
12Mg 2+?

Answers

Answer 1

Answer:

Mg with 2 dots

Explanation:

Mg: as the valnce shell of Mg has 2 electrons only

presented by 2 dots


Related Questions

The Periodic Table of elements is arranged by:
O atomic mass
O number of neutrons
O number of electrons
O atomic number

Answers

Option D, atomic number is the correct answer

Answer:

D. Atomic Number

Explanation:

All of the elements in the periodic table are arranged according to their atomic number.

How many moles of NaOH are in a 75.89g sample? (mass= 40.01 g) (Show your work)

Answers

Answer:

1.896 moles of NaOH-----> 1.90 moles

Explanation:

Written- out Method:

75.89 g of NaOH  |  1 mole of NaOH  

                             |  40.01 g NaOH                = 1.896 -----> 1.90 moles of NaOH

Plug into calculator method:

(75.89 g NaOH/ 40.01 g NaOH = 1.896 -----> 1.90 moles of NaOH


What do the elements in Group 2 have in common?

Answers

Answer:

they are all on the periodic table and they are all elements ?

Answer:

They are all alkaline each metals and they each have the same number of valence electrons

Which particle changes to create an isotope of an atom?
A.proton
B.neutron
C.electron

Answers

Answer:

A

Explanation:

proton


Which type of matter is always made up of only one kind of atom?
A. Element
B. Mixture
C. Molecule
D. Compound
pls answer fast

Answers

Answer:

A. element

Explanation:

Answer: Element

Explanation: A substance that is composed of only one type of atom is called an element. At this point, what should amaze you is that all forms of matter in our universe are made with only 118 different building blocks.

psoriasis is a disease that causes a red rash on the skin. which body system does psoriasis affect?
a. respiratory
b. integumentary
c. immune
d. digestive
e. circulatory​

Answers

Answer:

The answer to this question is integumentary.

Explanation:

The answer is that because that is your skin area and so if you have a rash then if will affect that part.

It's b. integumentary

I got the test right

1 point
Nitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope is the most abundant?

Answers

Explanation:

Nitrogen-14 is the most abundant isotopes of Nitrogen.

Which metal is most likely to form more than one kind of positively charged ion?
A.Sodium
B.Barium
C.Nickel
D.Magnesium

Answers

C. Nickel, hope this helps!

Answer:

D.Magnesium

Explanation:

Cause imma nerd

3
1 point
1
Select ALL of the true statements
An atom of a given element will still be that element if the number of protons changes
Atoms are mostly made of empty space
An atom of a given element will still be that element if the number of electrons changes
OOGOOO
An atom of a given element will still be that element if the number of neutrons changes
Electrons have a negligible mass compared to the rest of the atom
The atoms mass comes mostly from the neutrons
Previous

Answers

Answer:

Not 100% sure but...

Explanation:

I know that the second, third and fifth one are correct, not sure if there are any more.

Which element has 5 protons 5 neutrons and 5 electrons

Answers

Question: which element has 5 protons 5 neutrons and 5 elections






Answer: Boron

Elements are the smallest unit of the atom and cannot be divided. An element having 5 electrons, protons, and neutrons is a boron.

What are subatomic particles?

Subatomic particles are the constituents of atoms that have mass and charge. They are the components that make the element unique and give the atomic number and the mass.

The electron is a negatively charged particle and protons are positive particles that along with neutral neutron give the atomic mass. An element with 5 sub atomic particles is called a boron.

Therefore, the element is boron.

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Which statement best describe what happens during a chemical change

Answers

Answer:

both the identity and the properties of a substance change.

Answer:

its A both the identity and the properties of a substance change

Explanation:

got it right on edge


If you had 4 protons and 5 neutrons you created which element *

Answers

Answer:

Beryllium

Explanation:

No. of protons = 4

No. of electrons = 4 (number of protons and neutrons are the same)

No. of neutrons = 5

You need to look at the number of electrons of the outer shell (group no.) there are and how many shells there are (period no.)

Then look at the period table of elements to find the element

I need help with this. Plzzzzz

Answers

Answer:what do you nned help with

Explanation:

Which two parts are needed to make a neutral atom of nitrogen A. Electron clouds with a total of 14 electrons B. Electron cloud is a total of seven electrons C. A nucleus with seven protons and seven neutrons D. A nucleus with three protons and four neutrons

Answers

Answer:

B. Electron cloud is a total of seven electrons

C. A nucleus with seven protons and seven neutrons

Explanation:

An atom is consist of three subatomic particles: electron, proton, and neutron. Proton are positively charged particles and neutron have neutral charge, they both are present inside the nucleus in the center of the atom whereas electrons are negatively charged and surround the nucleus in a definite orbit.

Nitrogen is an element with 7 electrons in its outer orbit. As electrons are negatively charged so nitrogen atom will require 7 protons inside the nucleus to form a neutral atom of nitrogen. So, A neutral atom of nitrogen will consist of 7 electrons and 7 protons.

As, neutron has neutral charge so it will not affect the composition of neutral atom of nitrogen.

Hence, the correct options are:

"B. Electron cloud is a total of seven electrons

C. A nucleus with seven protons and seven neutrons ".

Answer:

B and C

Explanation:

please help asappp
will mark branliest!!

Answers

Answer:c

Explanation:

Answer:

C is the answer

are in the outermost energy level

Which is a dominant trait that Mendel observed in pea plant

A. Bumpy pods

B. Short height

C. Yellow seeds

D. White flowers

it is not A

Answers

Answer:

C, yellow seeds

Explanation:

In Mandel's studies, he proved that yellow seeds were to be dominant and green seeds were to be recessive.

Answer:

c. yellow seeds

Explanation:

i toke the test

Bromine, a liquid at room temperature, has a boiling point of 58°C and a melting point of –7.2°C. Bromine can be classified as a
compound.
impure substance.
mixture.
pure substance.

Answers

Answer:

D. pure substance.

Explanation:

Answer:

:D

Explanation:

Physical Science A 20-21 - Spencer / Basics of Physical Scier
1. Decide which of the following is the best observation.
The dog ate the bone hiding.
The dog ate the bone hiding under the tree.
The dog ate the bone hiding under the shady tree.
The dog ate the bone.

Answers

Answer:

The dog ate the bone hiding under the shady tree.

Explanation:

The best observation is that the dog ate the bone hiding under the shady tree. This is because it provides the most graphic details about the position and activities of the dog.

With this choice, we can properly picture the dog and the relationship it has with the tree. The more information we know about a subject of investigation, the better an observation it affords. Such a well informed observation will make analysis much better.

Answer:

The dog ate the bone hiding under the shady tree.

Explanation:

It has the most detail :)

Use “impact force” in a sentence.

Answers

Answer:

The impact force of a car hitting a building can traumatize someones body.

Explanation:

Explain how your answer to CTQ 6 is consistent with your answer to CTQ 5.

Answers

Answer:

up 1

Explanation:

Explain the term catalyst and how it affects the rate of a chemical reaction.

Answers

Answer:

Catalyst. A catalyst speeds up a chemical reaction, without being consumed by the reaction. It increases the reaction rate by lowering the activation energy for a reaction. Energy diagrams are useful to illustrate the effect of a catalyst on reaction rates.

Explanation:

PLEASE HELP I'LL GIVE U BRAINLIEST

Answers

Answer:

files  

Explanation:

i had to answer the same question

Because of metallic bonding, when light is pointed at metals, they become
Oshiny
O malleable.
O ductile.
O conductive,

Answers

Metals become shiny when light is pointed at them.

Owing to the electronic configuration of metals ,metallic bonding exists in metals because of which when light is pointed at them they become shiny.

What is electronic configuration?

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene most likely observing?

boiling point
shape
hardness
odor

Answers

Answer:

D odor

Explanation:

Answer: odor

Explanation:

after the nutrients are extracted, where does the food go, waiting to be expelled?

Answers

Answer:

Nutrients advance through the alimentary canal to the stomach and small intestine, and waste materials continue from the small intestine to the colon (large intestine) and anus.

Explanation:

describe the relationship between the mass volume and density of material

Answers

Answer: For a given mass and volume, how much physical space a material takes up, of an object or substance, the density remains constant at a given temperature and pressure. The equation for this relationship is ρ = m / V in which ρ (rho) is density, m is mass and V is volume, making the density unit kg/m3.

Explanation:

What group of organic compounds include starch?
a Carbohydrates
b Lipids
Thing
C Proteins
d Nucleic Acids

Answers

The answer is A.) Carbohydrates.

C₂H₂
a. resonance
b. no resonance

Answers

Answer:

no resonance

Explanation:

Since there is only one possible lewis structure C2H2 does not have resonance. A molecule has resonance if more than one lewis structure can be drawn for that molecule. For molecules with resonance, each lewis structure individually does not accurately depict the structure of the molecule

Most metals are NOT ____ ? Liquid at room temperature, ductile, malleable, good conductors of heat and electricity.

Answers

Liquid at room temperature

Most metals are not liquid at room temperature. Therefore, option A is correct.

Most metals are not liquid at room temperature, except for a few specific exceptions such as mercury (Hg) and gallium (Ga). These metals have relatively low melting points, which allows them to exist in a liquid state at or near room temperature.

The majority of metals, however, exhibit a solid state at room temperature. This solid state is characterized by a regular arrangement of atoms or ions in a crystal lattice structure. The strength of metallic bonds holds the atoms together, giving metals their solid and rigid form.

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Liquids will boil at a higher temperature when they are at a lower elevation true or false ?

Answers

Question: Liquids will boil at a higher temperature when they are at a lower elevation true or false ?

Answer: True






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