BJU Science 6 Chapter 7 Review

Scientist ______ developed a simplified model of at an atom.

based on the number of protons in the nucleus

When positively and negatively charged ions attract each other they form...

an atom that has gained or lost electrons

Compounds are a kind of molecule produced as a result of chemical change.

Name the part of the atom. E is ......

the smallest piece of an element that can be recognized as that element

A substance; only one kind of atom

baking soda, soap, bleach

What is the element name?

Name the part of the atom. B is ......

Name the part of the atom. C is ......

Name the part of the atom. A is ......

If a carbon atom with 6 protons loses an electron it is _______ charged.

the process in which different types of atoms join and form a new substance

In a(n) __________ atoms share electrons.

A pH of 14 is a really strong

the study of matter-what it is made of, what its usual characteristics are, how it reacts ...

The name of a row on the periodic table.

Which is INCORRECT about an electron?

You can determine the concentration of acids or bases in a solution by using _____

The compound H₂CO₃ has ______ atoms of OXYGEN in it

Molecules are only produced when atoms of the same element combine.

acid or base? Lemons, vinegar, tomato juice

chemical symbols and numbers abbreviating the name of a compound

An element and has 10 electrons and 11 neutrons and 8 protons what's the atomic weight

A substance that changes color when exposed to acid or base solutions is called an

What is this element's chemical symbol?

slippery to the touch

What is this element's atomic number?

What is this element's atomic mass?

The scientist ______ developed the periodic table of the elements.

The sum of the number of protons and neutrons results in an atom's approximate _______.

Which is not in the nucleus?