SPS1a Atom Models Practice

Front

What is the atomic number of Bromine (Br)?

Back

35

Front

What is the Bohr model used for in atomic theory?

Back

The Bohr model is used to describe the structure of atoms, specifically how electrons are arranged in orbits around the nucleus.

Front

How many valence electrons does Silicon (Si) have?

Back

4

Front

How many valence electrons does Magnesium (Mg) have?

Back

2

Front

What is the name of the element with the atomic number 18?

Back

Argon

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms, influencing the chemical properties of the element.

Front

What is the general trend of valence electrons across a period in the periodic table?

Back

The number of valence electrons increases from left to right across a period.

Front

What is the general trend of atomic size down a group in the periodic table?

Back

Atomic size increases down a group due to the addition of electron shells.

Front

What is the electron configuration of Silicon (Si)?

Back

1s² 2s² 2p⁶ 3s² 3p²

Front

What is the difference between a cation and an anion?

Back

A cation is a positively charged ion, while an anion is a negatively charged ion.