Chemical bonding

Why do atoms make bonds?

• They just want some stability in life

• To complete the innermost shell

• To fill the outermost shell with 8 electrons

• Cause they are bored

Answer explanation

Atoms make bonds to complete their outermost shell with 8 electrons, ensuring stability in their lives.

The vertical (up and down) columns in the Periodic Table are called

• Groups

• periods

• Lighthouses

• Tacos

Answer explanation

The vertical columns in the Periodic Table are called groups, which categorize elements with similar properties.

In the periodic table elements are arranged according to their increasing___

• mass number

• atomic number

• proton number

• All of them

Answer explanation

In the periodic table, elements are arranged according to their increasing atomic number. The atomic number determines the number of protons in an atom, which is unique to each element.

An atomic number represents which subatomic particle?

• Number of neutrons

• Number of electrons

• Number of protons

• Number of protons and electrons

Answer explanation

The atomic number represents the number of protons in an atom, which determines its identity and chemical properties.

All of the elements in a period have the same number of _____.

• Number of electrons

• Number of shells

• Number of protons

• Number of cars

Answer explanation

All elements in a period have the same number of shells. This determines their chemical properties.

Electron Shells are the ___ of an atom.

• Energy levels

• assets

• Cats

• Valance electrons

Answer explanation

Electron shells are the energy levels of an atom. They represent the different regions where electrons can be found. The correct choice is 'Energy levels'.

Valence electrons are: 

• Non-bonding electrons

• Bonding electrons

• Outermost electrons

• Innermost electrons

Answer explanation

Valence electrons are the outermost electrons involved in bonding.

When an atom loses or gains an electron it becomes:

• an ion

• a kitten

• a radical

• a liberal

Answer explanation

When an atom loses or gains an electron, it becomes an ion. An ion is formed when an atom gains or loses electrons, resulting in a positive or negative charge.

Tags

NGSS.MS-PS1-5

Who give up their electrons easily?

• Losers

• Metals

• Non Metals

• Nobel gases

Answer explanation

Metals give up their electrons easily because they have low ionization energy and are located on the left side of the periodic table.

Tags

NGSS.MS-PS2-3