Semeter 1 review CHEMISTRY

Front

What is a characteristic of gases?

Back

Gases have fast-moving particles.

Front

Which element is represented by the symbol 'Ne'?

Back

Neon

Front

What is the chemical symbol for Zinc?

Back

Zn

Front

True or False: Every element has its own unique atomic spectra.

Back

True

Front

What type of spectral lines do emission lines create on a visible light spectrum?

Back

Bright spectral lines.

Front

What is the state of electrons when they move to create emission lines?

Back

Excited state.

Front

What is the difference between a gas and a liquid in terms of shape and volume?

Back

A gas has no definite shape or volume, while a liquid has a definite volume but no definite shape.

Front

What is the atomic number of Neon?

Back

10

Front

What is the significance of atomic spectra in chemistry?

Back

Atomic spectra are unique to each element and can be used to identify substances.

Front

What happens to electrons when they absorb energy?

Back

They move to a higher energy level (excited state).