Log in
Sign up for FREE
arrow_back
Library
year 7 Science Homework Week 7
By Naomi Arthur
star
star
star
star
star
Share
share
Last updated over 4 years ago
14 questions
Add this activity
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Question 1
1.
Which substance is made of only one type of atom?
Element
Atom
Compound
Question 2
2.
Which substances contain two or more different types of atoms chemically bonded together?
Element
Atom
Compound
Question 3
3.
What is the smallest part of an element that can exist
Element
Atom
Compound
Question 4
4.
What does diatomic means?
Three atoms chemically bonded
Two atoms chemically bonded
Two compounds chemically bonded
Question 5
5.
How would you separate compounds?
Chemical reaction
physical process
burn it
Question 6
6.
What is a “pure substance”?
Only contain two types of element or compound
Only contains one type of element or compound
Only contains one type of compound
Question 7
7.
What type of substance contains only two or more types of atom that are chemically bonded?
Element
Compound
Mixture
Question 8
8.
What type of substance contains only one type of atom?
Element
Compound
Mixture
Question 9
9.
How would you separate mixtures?
Chemical Reaction
Physical Process
Burn it
Question 10
10.
Where are protons and neutrons found in an atom?
The nucleus (around the outside)
The nucleus (in the centre)
Orbiting around the outside
Question 11
11.
What is the charge on the protons?
-1
0
+1
Question 12
12.
What is the charge on the neutrons?
-1
0
+1
Question 13
13.
What is the charge on the electrons?
-1
0
+1
Question 14
14.
What is the atomic number?
The number of protons
the number of neutrons
the number of protons + number of neutrons