SPS1a Science Starter 12-3-24 (4th period)

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

How does a neutral atom become a 2+ ion?

Back

A neutral atom becomes a 2+ ion by losing two electrons.

Front

What are isotopes?

Back

Isotopes are two or more forms of the same element that have the same number of protons but different numbers of neutrons.

Front

What defines an atom?

Back

An atom is the smallest piece of an element that still represents that element.

Front

What happens to an atom when it gains electrons?

Back

When an atom gains electrons, it becomes an ion with a negative charge.

Front

What is the relationship between atomic number and protons?

Back

The atomic number of an element is equal to the number of protons in its nucleus.

Front

What is the charge of an ion that loses electrons?

Back

An ion that loses electrons has a positive charge.

Front

What distinguishes different elements?

Back

Different elements are distinguished by having different numbers of protons.

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.

Front

What is a proton?

Back

A proton is a positively charged subatomic particle found in the nucleus of an atom.