Chemistry Study

Hexa- prefix means

• 4

• 7

• 8

• 6

When group 1A forms ion they lose?

• 1 Electron

• 1 Proton

• 2 Electrons

• 2 Protons

What is the formula for MgCl

• MgCl

• Mg3Cl2

• MgCl2

• MgCl3

FeCl2

• Iron(III) Chloride

• Iron Chloride

• Iron (II) Chlorate

• Iron(II) chloride

What Symbol is the Alpha Particle

• 4He2

• 4H1

• 4H3

• 5H3

If the metals have more than one common Ionic charge. The number next to it is.

• Prefix

• Suffix

• Roman Numeral Following the name

• Superscript after the name

What is element is a transition metal

• H

• Ni

• S

• Br

Closeness of measurement to it's true value is a measure of its

• usefulness

• accuracy

• precision

• reprdoucibility

The number of protons and neutrons equals

• Atomic Number

• Mass Number

• Nuclear Number

• Atomic Number

How many significant figures is this number 923.40

• 3

• 2

• 5

• 4