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Orbitals
Parts of an Atom
Atomic Masses
What is Matter?
Atomic Numbers
100

S orbitals have what kind of shape?.

Spherical (circular)

100
The inner part of an atom that contains the proton and the neutron is called the __________.
Nucleus
100

What happens when an electron gains energy? 

When an electron gains energy, it can move to a higher energy level or orbital within an atom. This process is called excitation.

100
This is anything that takes up space (has a mass).
matter
100
Atomic numbers of an atom are the same as the number of what in an atom?
protons
200

What are the 4 quantum numbers? 

Principal Quantum Number (n),Angular Momentum Quantum Number (l),Magnetic Quantum Number (ml), Spin Quantum Number (ms)

200
These particles have a positive charge and are found inside the nucleus.
proton
200
Atomic masses are measured in what?
AMU
200
The smallest pieces of matter are called __________.
atoms
200
Carbon's atomic number is _______.
6
300

How many electrons does the s, p, d, and f orbitals holds?

  • s orbital: 2 electrons
  • p orbital: 6 electrons
  • d orbital: 10 electrons
  • f orbital: 14 electrons
300
These particles are located within the nucleus, and have no charge.
Neutron
300

How are elements organized in the periodic table?

Elements in the periodic table are organized based on their atomic number, which is the number of protons in their nucleus.

300

What is the difference between an atom and a molecule?

Atoms are the building blocks of elements.

Molecules are formed when atoms combine.

300
What element has a number of 56?
barium
400

Name all 3 rules for electron configurations. One is a chart/principle. One is a principle. One is a rule.

Aufbau principle Pauli exclusion principle Hund's rule

400
These particles are negatively charge and are found outside the nucleus.
electrons
400

Where are the valence electrons located?

Valence electrons are the electrons in the outermost energy level of an atom.

400

What is Kinetic Energy?

Kinetic energy is the energy an object has because of its motion.

400
Why does hydrogen have an atomic number of 1?
because it only has one proton
500

Write the full electron configuration of a carbon (C) atom using the aufbau principle and the periodic table.

1s^2 2s^2 2p^2 Carbon has 6 electrons!

500
Most of the mass of an atom is located here.
nucleus
500
An electron has a mass of what?
1/1836
500

Describe the atoms on a gas, solid, and liquid molecule.

  • Gases have atoms that are widely spaceds and high kinetic energy.
  • Solids have atoms that are closely packed,  and low kinetic energy.
  • Liquids have atoms that are moderately spaced, and medium kinetic energy.
500
Some atoms have more ___________, which makes it an isotope and gives it a negative charge
electrons