Compounds
Periodic Trends
Atomic Theories/Laws
Valence Electrons
Random
100

What is the name for NaCl?

Sodium Chloride

100

What is the periodic trend for Atomic Radius?

From left to right, the atomic radii get smaller. Going down a group, the atomic radii increase.

100

What does Coulomb's Law state?

Coulomb's Law states that the magnitude, or absolute value of the attractive or repulsive electrostatic force between two point charges is directly proportional to the product of the magnitudes of their charges and inversely proportional to the squared distance between them.

100

How many valence electrons does Carbon have?

4 electrons

100

By knowing the number of protons in a neutral atom, you can determine:

The identity of the element, the number of neutrons in the atom and the number of common isotopes of the element.

200

What is the compound of Chlorate?

ClO3

200

What happens when metals ionize?

They lose an electron and become positive ions. 

200

What is the characteristic of the Bohr model?

The Bohr atomic model have electrons orbiting the nucleus. 

200

How many valence electrons does Chlorine have?

7 electrons
200

Ions are formed in chemical reactions when:

When atoms lose or gain electrons in order to fulfill the octet rule and have full outer valence electron shells. 

300

What is the compound of Sodium carbonate?

Na2CO3

300

What is the periodic trend for Electronegativity?

Across a period Electronegativity increases, and going down a group Electronegativity decreases.

300

What does the Pauli Exclusion Principle state?

The Pauli Exclusion Principle states that no two electrons in the same suborbital can have the same spin.

300

How many valence electrons does Selenium have?

6 valence electrons

300

Who was the first chemist to perform truly quantitative experiments?

Boyle

400

What is the name for N2O5?

Dinitrogen pentoxide

400

What is ionization energy?

Ionization energy is the amount of energy needed to remove the valence electrons of an atom.

400

What does Hund's Rule state?

Hund's rule states that unpaired electrons must fill an unoccupied orbital before pairing up with a single electron in a previous orbital.

400

How many valence electrons does Gold have?

1 valence electron

400

What is defined as the ability to do work or produce heat?

Energy

500

What is the name of NaHSO4?

Sodium hydrogen sulfate

500

What is the periodic trend for Electron Affinity?

Going across a period, Electron Affinity is more negative and going down a group, Electron Affinity is more positive. 

500

What does Dalton's Atomic Theory state?

Dalton's Atomic Theory states the each element is made up of indivisible and indestructible atoms, all atoms of a given element carry the same properties, atoms combine in whole number ratios to form compounds and a chemical reaction changes the way atoms are bound together.

500

How many valence electrons does Rutherfordium have?

2 valence electrons

500

The element Rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. Rhenium-185 has in its nucleus:

75 protons, 110 neutrons

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