help guys pls is urgent!

Jan 21st, 2015
Price: $10 USD

Question description

1. What is the first element on the periodic table?

2. What is the centre of an atom called?

3. True or false? Acids have a pH level below 7.

4. What is the main gas found in the air we breathe?

5. True or false? An electron carries a positive charge.

6. Famous New Zealand scientist Ernest Rutherford was awarded a Nobel Prize in which field?

Tutor Answer

(Top Tutor) Caramarie M
School: UCLA

Studypool has helped 1,244,100 students

Review from student
" Wow this is really good.... didn't expect it. Sweet!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1823 tutors are online

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors