Basic chemistry

Front

Which subatomic part of an atom gives it a positive charge?

Back

Proton

Front

Which region of an atom has a negative charge?

Back

The electron cloud

Front

What is the smallest 'building block' of the elements that make up the universe? Options: An atom, An electron, A proton, A cell

Back

An atom

Front

An atom of carbon has 6 protons and 7 neutrons in its nucleus. If the atom is neutral, how many electrons does it have?

Back

6

Front

The number of protons in the nucleus of an atom?

Back

Atomic number

Front

An atom contains 9 protons. What must be true about this atom? Options: It has 9 neutrons in its nucleus, It is an isotope of oxygen, Its atomic mass is a decimal number, It cannot be an atom of oxygen.

Back

It cannot be an atom of oxygen.

Front

What will an atom of iodine with 7 valence electrons most likely do to be stable?

Back

Gain 1 electron

Front

An atom of neon has 8 valence electrons. What will an atom of neon MOST likely do to be stable?

Back

Neither gain nor lose any valence electrons

Front

What type of bond is formed when atoms share electrons?

Back

Covalent

Front

How are ionic and covalent bonds alike?

Back

They both fill outer electron shells.