Which of the following models of the atom reflects the unpredictable motion of the electron?
DHS PS Ch. 16 – Properties of Atoms and the Periodic Table (2015/2016)
| Question | Answer |
|---|---|
| The negatively charged particles outside the nucleus of an atom are called? | electrons |
| What is the name of the model of the atom that reflects the unpredictable motion of the electron? | electron cloud model |
What best describes the three general groups of elements?
The three main classes of elements are metals on the left side, metalloids on the staircase, and nonmetals on the right hand side.
Which of the following methods would be most useful for describing atoms?
constructing
What are broken down protons and neutrons into smaller particles called?
Given that these particles make up atoms, they are often referred to as subatomic particles. There are three subatomic particles: protons, neutrons and electrons. Two of the subatomic particles have electrical charges: protons have a positive charge while electrons have a negative charge.
Can atoms break apart?
To split an atom a neutron, travelling at just the right speed, is shot at the nucleus. Under the right conditions the nucleus splits into two pieces and energy is released. This process is called nuclear fission. This chain reaction very rapidly multiplies the amount of atoms split and the amount of energy released.
Can atoms be broken down by chemical means?
consists of atoms of two or more different elements bound together, can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means), has properties that are different from its component elements, and. always contains the same ratio of its component atoms.
Which type of matter Cannot be broken down?
Elements are the simplest form of matter; cannot be broken down further by either physical or chemical means.
What is the basic form of matter that Cannot be broken down?
An element is the simplest form of matter that has a unique set of properties. Elements cannot be broken down into a simpler substance. Likewise, one element cannot be chemically converted into a different element.
What is it called when two or more elements are brought together?
When two or more elements combine to form a new substance, it is called a compound. A compound is made when atoms of two or more elements bond in a chemical reaction.
What is it called when atoms join together?
When two electrons are shared between two neighbouring atoms, they are said to be joined by a covalent bond. When covalent bonds form between atoms, the resulting entity is called a molecule with a fixed characteristic geometry.
What is it called when two of the same atoms are bonded together?
Compound: two or more different atoms chemically bonded together. Molecule: two or more different or same atoms chemically bonded together.
Do atoms contain empty space?
In reality, atoms do not contain any empty space. Rather, they are filled completely with spread-out electrons, making the shrinking of atoms impossible.
Why is 99 empty space?
Atoms make up everything, but they also exist very, very far apart – and atoms themselves are more void than they are matter. Every atom has a nucleus surrounded by electrons. Every human on planet Earth is made up of millions and millions of atoms which all are 99% empty space.
Is empty space really empty?
Particles from empty space Quantum mechanics tells us that there is no such thing as empty space. Even the most perfect vacuum is actually filled by a roiling cloud of particles and antiparticles, which flare into existence and almost instantaneously fade back into nothingness.
How much of human body is empty space?
99.9999999%
Do humans actually touch things?
You don’t actually “touch” anything at any level. When we “touch” something, the atoms of our fingertips approach the atoms of the surface we’re “touching”, at which point atomic forces prevent any closer proximity. The resistance we feel is actually mutual atomic repulsion from a distance.
Can humans walk through walls?
If you’ve ever tried the experiment, you know you can’t walk through a wall. But subatomic particles can pull off similar feats through a weird process called quantum tunneling. Tunneling would be an even bigger achievement.
Why can’t we walk through walls?
You simply can’t walk through walls. Because according to the Pauli Exclusion Principle, no two particles can exist in the same place – it’s just impossible for both the particles — within the limits set by the uncertainty principle — to have the same position and same velocity.
Is Phasing possible IRL?
Yes! Indeed. U just have to turn yourself into energy, then energy can transmitted through anything. If you can travel in light speed (actually twice the power of light speed) then your body mass converts into energy (E=mc^2).
Where does your energy go after you die?
The pattern of the energy flow as the person nears death becomes thin and draws in toward the physical body, and the chakras close from the feet upward in the cases experienced.
Can you destroy energy?
First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed. The First Law of Thermodynamics (Conservation) states that energy is always conserved, it cannot be created or destroyed. In essence, energy can be converted from one form into another.
Who said energy never dies?
This law, first proposed and tested by Émilie du Châtelet, means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another. For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes.