Which of the diagrams below shows an atom that is not a form of hydrogen?

Answer:

I believe is the npp i kinda forgot how to do these lol

Diagram with npp type shows an atom that is not a form of hydrogen.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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Which statement about the alkali metals is correct?
A. They are usually gases.
B. They are extremely unreactive.
C. They are located in the left-most column of The Periodic Table
D. They form negative ions with a -1 charge

Ples help is it Fission, Fusion, or Both 1. Incredibly high amounts of energy are released. ____ 2. Results in a nuclear change. ______ 3. The end product is heavier. _____ 4. Two nuclei become one. ____ 5. The end product is lighter. ____

Write a essay on endangered animals


A: Inquiring and analysing

i. explain and justify the need for a solution to a problem

ii. state and prioritize the main points of research needed to develop a solution to the problem

iii. describe the main features of an existing product that inspires a solution to the problem

iv. present the main findings of relevant research

B: Developing ideas

i. develop a list of success criteria for the solution

ii. present feasible design ideas, which can be correctly interpreted by others

iii. present the chosen design

C: Creating the solution

i. outline a plan, which considers the use of resources and time, sufficient for peers to be able to follow to create the solution

ii. demonstrate excellent technical skills when making the solution

iii. follow the plan to create the solution, which functions as intended

iv. list the changes made to the chosen design and plan when making the solution

D: Evaluating


i. outline simple, relevant testing methods, which generate data, to measure the success of the solution

ii. outline the success of the solution against the design specification

iii. outline how the solution could be improved

iv. outline the impact of the solution on the client/target audience

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Which is a compound?
A. Orange and black shirts in a drawer
B. An alloy of copper and iron
C. Silicon and carbon in a molecule
D. A copper statue
please help, on a pex ! brainliest and an extra 50 points if right

boron phosphite
Formula please help fast please please help me please please help

Convert 48.5 grams of water to moles of water

Which of the following redox conditions will produce a spontaneous reaction?

A. The voltage of the reduction half-reaction is negative.
B. The voltage of the reduction half-reaction is positive.
C. The sum of the voltages of the half-reactions is negative.
D. The sum of the voltages of the half-reactions is positive. ​

identify the element present in the following compound zinc chloride​

In sexual reproduction, a genetic mutation can ONLY be passed down to the offspring if it occurs in the sex cells.

True

False

The atmosphere insulates the planet by trapping in

What Phase is water at 120 degrees Celsius?

What is the amplitude ?

A mixture consists of 28% oxygen, 14% hydrogen, and 58% nitrogen by volume. A sample of this mixture has a pressure of 4.0 atm in a 9.6 L container at 300 K temperature. This mixture is run through a gas filter, which removes the hydrogen from this system. The gas is placed back into the 9.6 L container. How many moles of gas are left in the container? A) 4.2 mol B) 2.6 mol C) 1.3 mol D) 3.9 mol

What is specific heat? How are the factors affecting it?

help help help plsss

How many significant digits would you report an answer to if you divided 2.654 by 3.2?

answer choices
1
2
3
4

Which of the following statements is FALSE?
H2SO4 + 2 NaOH → Na2SO4 + 2 H2O is a double replacement reaction

2 KClO3 →KCl + 2 O2 is a decomposition reaction.

C6H12 + 9 O2 → 6 H2O + 6 CO2 is a single replacement reaction

CO2 + Na2O → Na2CO3 is a synthesis reaction

5. An anion of carbon C-4 has how many electrons?
a. 6
b. 8
C. 9
d. 10

Which element has an electron configuration that ends in the fourth energy 1 point
level? *
D
ОО
C

Separate the following gene sequence into codons: TACGTCTTACGCTATGTC

Answer really quick plssss

Intermolecular forces do not have any effect on determining the physical properties of
substances such as surface tension and melting point.
True or false

On hot days, you may have noticed that potato chip bags seem to “inflate”, even though they have not been opened. If I have a 250 mL bag at a temperature of 19 0C, and I leave it in my car which has a temperature of 600 C, what will the new volume of the bag be? will give brainliest

In the Periodic Table, the vertical columns that extend down the Periodic Table are called
A. periods.
B. Groups.
C: Classes
D: Rows

What is the speed of a car that has traveled 100 miles in 20 hours?
|

Calculate the number of milliliters of 0.440 M KOH required to precipitate all of the Fe2+ ions in 187 mL of 0.692 M FeSO4 solution as Fe(OH)2. The equation for the reaction is: FeSO4(aq) + 2KOH(aq) Fe(OH)2(s) + K2SO4(aq)

1. Which of the following is Newton's First Law? *

A-An object in motion will stay in motion unless acted on by a balanced force.

B-An object at rest will stay at rest and an object in motion will stay in motion in the same speed and same direction unless acted on by an unbalanced force.

C-Moving objects will stay in motion forever

Weathering, erosion, and deposition act together in a cycle that wears down
and builds up Earth's surface. true or false???

Which organelle captures sunlight and helps in food synthesis?

A coffee cup calorimeter contains 153.21 g of water at 22.50 °C. A 65.454 g piece of iron is heated to 101.62 °C. The piece of iron is added to the coffee cup caloriemter and the contents reach thermal equilibrium at 25.68 °C. The specific heat capacity of iron is 0.449 Jg·K and the specific heat capacity of water is 4.184 Jg·K. How much heat, , is lost by the piece of iron?

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Which of these is a characteristic of warm air? (5 points)

a It transfers energy through radiation.

b Its molecules are far apart.

c It sinks due to convection.

d It cools the land below i