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Covalent Bonds
Ionic Bonds
Electrons
Chemical Symbols
Chemical Formulas
100
When atoms do this, a covalent bond occurs.
What is share electrons?
100
An ionic bond occurs when atoms interact this way.
What is transfer electrons?
100
The number of electrons in the lowest energy level.
What is two?
100

This element (Fe) is the fourth most common element in Earth's crust.

What is iron?

100
What results when atomic symbols and numbers (if needed) are combined.
What is a chemical formula?
200
The charge of a particle that has a covalent bond.
What is neutral?
200
The name of the atom that has gained an electron in an ionic bond.
What is a cation?
200

The location to determine the number of electrons in an atom's outer electron shell.

What is group number?

200

This element (C) is commonly found in stars, comets, and atmospheres of many planets along with living things on Earth.

What is carbon?

200
The chemical formula for 2 atoms of hydrogen and 4 atoms of helium.
What is H2He4?
300
The type of particle that is formed when atoms covalently bond.
What is a molecule?
300
The name of the atom that has lost an electron.
What is an anion?
300
Electrons in the outer shell that are responsible for radioactivity.
What are valence electrons?
300
Meteorites usually contain about 15% - 20% of this element (Ni).
What is nickel?
300
The number of atoms of hydrogen in a hydrogen molecule.
What is two?
400
The bond that results when atoms share two electrons.
What is a double bond?
400
Most substances formed by an ionic bond have this kind of appearance.
What is a crystalline appearance?
400
The measurement of the attraction or pull an atom has for electrons is called this.
What is electronegativity?
400
Compounds with this element (Be) are highly toxic.
What is beryllium?
400
The number of hydrogen atoms in ammonia.
What is three?
500
An unequal attraction or sharing of particles results in this type of covalent bond.
What is a polar covalent bond?
500
The crystalline substance that is formed when positive metallic ions bond with negative non-metallic ions.
What is an ionic salt?
500
This group on the periodic table is more likely to share electrons than any other group.
What are non-metals?
500

These elements (Og or Ts) has the greatest atomic mass of all of the elements.

What is oganesson or tennessine?

500

The number of total atoms in one molecule of carbon dioxide.

What is three (CO2)?